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Elenco dei risultati
- File:Patent-US-2380763.pdf + (David Juelss)
- File:Patent-US-2393251.pdf + (David Juelss)
- File:Patent-US-D142170.pdf + (David Juelss)
- File:Patent-US-2110551.pdf + (Robert E. Freidlein)
- File:Patent-US-2239526.pdf + (David Juelss)
- File:Patent-US-2393250.pdf + (David Juelss)
- File:Patent-US-2241203.pdf + (David Juelss)
- File:Patent-US-2349553.pdf + (David Juelss)
- File:Patent-US-2365880.pdf + (David Juelss)
- File:Patent-US-2473149.pdf + (David Juelss)
- File:Patent-US-2811948.pdf + (David Kahn)
- File:Patent-US-D087524.pdf + (David Kahn)
- File:Patent-US-D087525.pdf + (David Kahn)
- File:Patent-US-D088299.pdf + (David Kahn)
- File:Patent-US-D141588.pdf + (David Kahn)
- File:Patent-US-D098255.pdf + (David Kahn)
- File:Patent-US-D158973.pdf + (David Kahn)
- File:Patent-US-D183696.pdf + (David Kahn)
- File:Patent-US-D138346.pdf + (David Kahn)
- File:Patent-US-D110810.pdf + (David Kahn)
- File:Patent-US-D123293.pdf + (David Kahn)
- File:Patent-US-D101042.pdf + (David Kahn)
- File:Patent-US-D106407.pdf + (David Kahn)
- File:Patent-US-D121336.pdf + (David Kahn)
- File:Patent-US-D121335.pdf + (David Kahn)
- File:Patent-US-D135890.pdf + (David Kahn)
- File:Patent-US-D158465.pdf + (David Kahn)
- File:Patent-US-2365473.pdf + (David Kahn)
- File:Patent-US-D084146.pdf + (David Kahn)
- File:Patent-US-D120734.pdf + (David Kahn)
- File:Patent-US-D087523.pdf + (David Kahn)
- File:Patent-US-1966369.pdf + (Steven G. Yates)
- File:Patent-US-2075725.pdf + (David Kahn)
- File:Patent-US-2094796.pdf + (David Kahn)
- File:Patent-US-2094797.pdf + (David Kahn)
- File:Patent-US-2105424.pdf + (David Kahn)
- File:Patent-US-2141988.pdf + (David Kahn)
- File:Patent-US-2141990.pdf + (David Kahn)
- File:Patent-US-2141991.pdf + (David Kahn)
- File:Patent-US-2150065.pdf + (David Kahn)
- File:Patent-US-2186027.pdf + (David Kahn)
- File:Patent-US-2186869.pdf + (David Kahn)
- File:Patent-US-2186870.pdf + (David Kahn)
- File:Patent-US-2203093.pdf + (David Kahn)
- File:Patent-US-2208460.pdf + (David Kahn)
- File:Patent-US-2249004.pdf + (David Kahn)
- File:Patent-US-2339860.pdf + (David Kahn)
- File:Patent-US-2509234.pdf + (David Kahn)
- File:Patent-US-2605745.pdf + (Karl Weisser)
- File:Patent-US-2605746.pdf + (David Kahn)
- File:Patent-US-2624315.pdf + (Karl Weisser)
- File:Patent-US-2642842.pdf + (David Kahn)
- File:Patent-US-2692580.pdf + (David Kahn)
- File:Patent-US-2750927.pdf + (David Kahn)
- File:Patent-US-2774333.pdf + (David Kahn)
- File:Patent-US-2807237.pdf + (David Kahn)
- File:Patent-US-D138345.pdf + (David Kahn)
- File:Patent-US-1475954.pdf + (David Klein)
- File:Patent-US-1475953.pdf + (David Klein)
- File:Patent-US-1468025.pdf + (David Klein)
- File:Patent-US-839537.pdf + (David W. Beaumel)
- File:Patent-US-769427.pdf + (David W. Beaumel)
- File:Patent-US-1169603.pdf + (David W. Beaumel)
- File:Patent-US-1435446.pdf + (David W. Beaumel)
- File:Patent-US-353399.pdf + (Francis C. Brown)
- File:Patent-US-507348.pdf + (David W. Beaumel)
- File:Patent-US-491795.pdf + (David W. Beaumel)
- File:Patent-US-603463.pdf + (David W. Beaumel)
- File:Patent-US-1790037.pdf + (Davide Dante Zerollo)
- File:Patent-US-D066791.pdf + (Davis L. Davis)
- File:Patent-US-D069499.pdf + (Davis L. Davis)
- File:Patent-US-1151980.pdf + (De Witt C. Van Valer)
- File:Patent-US-1328215.pdf + (De Witt C. Van Valer)
- File:Patent-US-772193.pdf + (De Witt C. Van Valer)
- File:Patent-US-2418410.pdf + (Denison B. Hull)
- File:Patent-GB-842854.pdf + (Derrick John Silver)
- File:Patent-GB-903560.pdf + (Derrick John Silver)
- File:Patent-GB-903559.pdf + (Derrick John Silver)
- File:Patent-CH-352252.pdf + (Derrick John Silver)
- File:Patent-CH-353996.pdf + (Derrick John Silver)
- File:Patent-GB-927251.pdf + (Derrick John Silver)
- File:Patent-US-2983254.pdf + (Derrick John Silver)
- File:Patent-GB-948431.pdf + (Derrick John Silver)
- File:Patent-GB-1017991.pdf + (Derrick John Silver)
- File:Patent-US-3116719.pdf + (Derrick John Silver)
- File:Patent-US-634398.pdf + (Dewitt C. Demarest)
- File:Patent-US-361493.pdf + (Dewitt C. Demarest)
- File:Patent-US-340865.pdf + (Dewitt C. Demarest)
- File:Patent-US-408000.pdf + (Dewitt C. Demarest)
- File:Patent-US-1112362.pdf + (Dewitt C. Demarest)
- File:Patent-US-353053.pdf + (Dewitt C. Demarest)
- File:Patent-US-1723171.pdf + (William A. Houston)
- File:Patent-US-1893130.pdf + (Mirko Chelazzi)
- File:Patent-GB-397736.pdf + (Mirko Chelazzi)
- File:Patent-FR-728038.pdf + (Mirko Chelazzi)
- File:Patent-US-D185824.pdf + (Warren B. Armstrong)
- File:Patent-US-1787406.pdf + (Donald D. Mungen)
- File:Patent-US-2987044.pdf + (Donald H. Young)
- File:Patent-US-2802448.pdf + (Donald H. Young)
- File:Patent-US-2881737.pdf + (Donald H. Young)
- File:Patent-US-2782762.pdf + (Donald H. Young)
- File:Patent-US-D178033.pdf + (Donald H. Young)
- File:Patent-US-D177359.pdf + (Donald H. Young)
- File:Patent-GB-179145.pdf + (Donald Ladd)
- File:Patent-CA-225369.pdf + (Donald Ladd)
- File:Patent-US-2362948.pdf + (Walter D. Teague)
- File:Patent-US-2293343.pdf + (Doyle P. Jacobs)
- File:Patent-US-1277848.pdf + (Duncan Cameron)
- File:Patent-US-940509.pdf + (Duncan Cameron)
- File:Patent-US-1375559.pdf + (Duncan Cameron)
- File:Patent-FR-483349.pdf + (Duncan Cameron)
- File:Patent-GB-113082.pdf + (Duncan Cameron)
- File:Patent-GB-101241.pdf + (Duncan Cameron)
- File:Patent-FR-20859E.pdf + (Duncan Cameron)
- File:Patent-GB-151844.pdf + (Duncan Cameron)
- File:Patent-FR-526081.pdf + (Duncan Cameron)
- File:Patent-DE-356665.pdf + (Duncan Cameron)
- File:Patent-GB-190515547.pdf + (Duncan Cameron)
- File:Patent-GB-190804024.pdf + (Duncan Cameron)
- File:Patent-GB-190809818.pdf + (Duncan Cameron)
- File:Patent-GB-190708313.pdf + (Duncan Cameron)
- File:Patent-GB-190828493.pdf + (Duncan Cameron)
- File:Patent-FR-396527.pdf + (Duncan Cameron)
- File:Patent-GB-190823642.pdf + (Duncan Cameron)
- File:Patent-US-61156.pdf + (Robert Macintyre Cameron)
- File:Patent-US-174965.pdf + (Duncan Mackinnon)
- File:Patent-US-217888.pdf + (Duncan Mackinnon)
- File:Patent-US-1484077.pdf + (Earl F. Pierce)
- File:Patent-US-D080362.pdf + (William R. Cuthbert)
- File:Patent-US-632320.pdf + (Edgar E. Nelthorpe)
- File:Patent-US-1957677.pdf + (Henry F. Soper)
- File:Patent-US-D187831.pdf + (Edmund F. Buryan)
- File:Patent-US-1320393.pdf + (Edmund M. Houston)
- File:Patent-GB-191101051.pdf + (Edmund Moster)
- File:Patent-GB-190814947.pdf + (Edmund Moster)
- File:Patent-FR-395879.pdf + (Edmund Moster)
- File:Patent-AT-38995.pdf + (Edmund Moster)
- File:Patent-CH-45651.pdf + (Edmund Moster)
- File:Patent-AT-65330B.pdf + (Edmund Moster)
- File:Patent-AT-56132B.pdf + (Edmund Moster)
- File:Patent-AT-63461B.pdf + (Edmund Moster)
- File:Patent-FR-423826.pdf + (Edmund Moster)
- File:Patent-FR-15507E.pdf + (Edmund Moster)
- File:Patent-FR-363394.pdf + (Eduard Penkala)
- File:Patent-DE-183242.pdf + (Eduard Penkala)
- File:Patent-DE-176702.pdf + (Eduard Penkala)
- File:Patent-FR-06524E.pdf + (Eduard Penkala)
- File:Patent-GB-190603690.pdf + (Eduard Penkala)
- File:Patent-AT-31184.pdf + (Eduard Penkala)
- File:Patent-DK-09918.pdf + (Eduard Penkala)
- File:Patent-DK-09144.pdf + (Eduard Penkala)
- File:Patent-GB-190616715.pdf + (Eduard Penkala)
- File:Patent-CH-36513.pdf + (Eduard Penkala)
- File:Patent-CH-37618.pdf + (Eduard Penkala)
- File:Patent-AT-31185.pdf + (Eduard Penkala)
- File:Patent-GB-190812001.pdf + (Eduard Penkala)
- File:Patent-AT-36998.pdf + (Eduard Penkala)
- File:Patent-DE-193717.pdf + (Eduard Penkala)
- File:Patent-GB-191210727.pdf + (Edmund Moster)
- File:Patent-DE-121245.pdf + (Eduard Reisert)
- File:Patent-CH-13885.pdf + (Eduard Reisert)
- File:Patent-CH-282E.pdf + (Eduard Reisert)
- File:Patent-US-803927.pdf + (Eduard Reisert)
- File:Patent-US-673451.pdf + (Eduard Reisert)
- File:Patent-US-655736.pdf + (Eduard Reisert)
- File:Patent-US-634029.pdf + (Eduard Reisert)
- File:Patent-GB-190308198.pdf + (Eduard Reisert)
- File:Patent-GB-190023217.pdf + (Eduard Reisert)
- File:Patent-GB-190006677.pdf + (Eduard Reisert)
- File:Patent-GB-189902000.pdf + (Eduard Reisert)
- File:Patent-FR-333684.pdf + (Eduard Reisert)
- File:Patent-DK-2722C.pdf + (Eduard Reisert)
- File:Patent-DK-1592C.pdf + (Eduard Reisert)
- File:Patent-AT-7500B.pdf + (Eduard Reisert)
- File:Patent-AT-3719B.pdf + (Eduard Reisert)
- File:Patent-AT-398B.pdf + (Eduard Reisert)
- File:Patent-AT-179B.pdf + (Eduard Reisert)
- File:Patent-US-333104.pdf + (Edward A. Brandeburg)
- File:Patent-US-2561923.pdf + (Edward B. Harmon)
- File:Patent-US-1607048.pdf + (Edward Bergquist)
- File:Patent-US-1755586.pdf + (Edward C. Berry)
- File:Patent-US-1811874.pdf + (Edward C. Berry)
- File:Patent-US-1741368.pdf + (Edward E. Johnson)
- File:Patent-US-D100962.pdf + (Edward F. Molyneux)
- File:Patent-US-D100963.pdf + (Edward F. Molyneux)
- File:Patent-US-D100964.pdf + (Edward F. Molyneux)
- File:Patent-US-D100965.pdf + (Edward F. Molyneux)
- File:Patent-US-D100966.pdf + (Edward F. Molyneux)
- File:Patent-US-D100967.pdf + (Edward F. Molyneux)
- File:Patent-US-D100968.pdf + (Edward F. Molyneux)
- File:Patent-US-D100969.pdf + (Edward F. Molyneux)
- File:Patent-GB-360918.pdf + (Edward G. Knight)
- File:Patent-GB-471612.pdf + (Edward G. Knight)
- File:Patent-GB-495659.pdf + (Edward G. Knight)
- File:Patent-GB-497169.pdf + (Edward G. Knight)
- File:Patent-GB-525411.pdf + (Edward G. Knight)
- File:Patent-US-523234.pdf + (Edward G. Peck)
- File:Patent-US-1180424.pdf + (Edward G. Peck)
- File:Patent-US-551895.pdf + (Henry Horton)
- File:Patent-US-1287556.pdf + (Edward G. Woody)
- File:Patent-US-742036.pdf + (Edward J. Kastner)
- File:Patent-US-791466.pdf + (Edward M. Heylman)
- File:Patent-US-1510613.pdf + (Edward M. Slack)
- File:Patent-US-1939753.pdf + (Edward S. Wood)
- File:Patent-GB-412610.pdf + (Edward S. Wood)
- File:Patent-GB-729639.pdf + (Edward Stephen Sears)
- File:Patent-GB-679783.pdf + (Edward Stephen Sears)
- File:Patent-GB-729729.pdf + (Edward Stephen Sears)
- File:Patent-GB-656673.pdf + (Edward Stephen Sears)
- File:Patent-US-2554641.pdf + (Edward Stephen Sears)
- File:Patent-US-1954952.pdf + (Edward Stephen Sears)
- File:Patent-US-2579342.pdf + (Edward Stephen Sears)
- File:Patent-GB-595652.pdf + (Edward Stephen Sears)
- File:Patent-GB-390585.pdf + (Edward Stephen Sears)
- File:Patent-FR-554761.pdf + (Edward Stephen Sears)
- File:Patent-GB-435482.pdf + (Edward Stephen Sears)
- File:Patent-GB-451275.pdf + (Edward Stephen Sears)
- File:Patent-GB-479937.pdf + (Leslie William Johnson)
- File:Patent-GB-480717.pdf + (Leslie William Johnson)
- File:Patent-GB-480965.pdf + (Leslie William Johnson)
- File:Patent-GB-474893.pdf + (Leslie William Johnson)
- File:Patent-GB-514513.pdf + (Leslie William Johnson)
- File:Patent-GB-527422.pdf + (Leslie William Johnson)
- File:Patent-GB-575341.pdf + (Edward Stephen Sears)
- File:Patent-GB-616010.pdf + (Edward Stephen Sears)
- File:Patent-GB-623767.pdf + (Leslie William Johnson)
- File:Patent-GB-184071.pdf + (Edward Stephen Sears)
- File:Patent-GB-621822.pdf + (Leslie William Johnson)
- File:Patent-US-2056055.pdf + (Edward Stephen Sears)
- File:Patent-FR-989530.pdf + (Edward Terrell)
- File:Patent-US-D058001.pdf + (Edward Todd Jr.)
- File:Patent-US-D019277.pdf + (Edward Todd Jr.)
- File:Patent-US-D019278.pdf + (Edward Todd Jr.)
- File:Patent-US-910980.pdf + (Edward V. Whiton)
- File:Patent-GB-1039667.pdf + (Edwards Ernest Ethelbert)
- File:Patent-GB-1058094.pdf + (Edwards Ernest Ethelbert)
- File:Patent-GB-1150333.pdf + (Edwards Ernest Ethelbert)
- File:Patent-US-1156748.pdf + (Edwin F. Britten)
- File:Patent-US-1197360.pdf + (William I. Ferris)
- File:Patent-US-1228177.pdf + (Edwin F. Britten)
- File:Patent-GB-191505790.pdf + (William I. Ferris)
- File:Patent-FR-480426.pdf + (Edwin F. Britten)
- File:Patent-US-D047643.pdf + (Edwinc J. Dukes)
- File:Patent-US-1789522.pdf + (Egon Fritsch)
- File:Patent-US-D036798.pdf + (Egon Lothar Schmitz)
- File:Patent-US-2233846.pdf + (Eldie E. Packard)
- File:Patent-US-2949887.pdf + (Lynn P. Martin)
- File:Patent-US-D252464.pdf + (Elmer D. Thompson)
- File:Patent-FR-628272.pdf + (Emanuel Feldorf)
- File:Patent-GB-269614.pdf + (Emanuel Feldorf)
- File:Patent-GB-273357.pdf + (Emanuel Feldorf)
- File:Patent-US-1988878.pdf + (Emanuel J. Sonn)
- File:Patent-DE-689266.pdf + (Emil Ghüne)
- File:Patent-DE-739296.pdf + (Emil Ghüne)
- File:Patent-DE-741104.pdf + (Emil Ghüne)
- File:Patent-DE-755511.pdf + (Emil Ghüne)
- File:Patent-DE-761811.pdf + (Emil Ghüne)
- File:Patent-DE-928276.pdf + (Emil Ghüne)
- File:Patent-DE-764096.pdf + (Emil Ghüne)
- File:Patent-DE-820253.pdf + (Karl Ziegler)
- File:Patent-DE-875462.pdf + (Emil Wenzel)
- File:Patent-FR-925076.pdf + (Emile Henry Jules Thinard)
- File:Patent-FR-973950.pdf + (Emile Henry Jules Thinard)
- File:Patent-US-2404063.pdf + (Emmett Healy)
- File:Patent-DE-744671.pdf + (Erhard Sattmann)
- File:Patent-GB-598726.pdf + (Eric Ernest Samuel Wade)
- File:Patent-FR-932296.pdf + (Eric Ernest Samuel Wade)
- File:Patent-US-2557710.pdf + (Eric Ernest Samuel Wade)
- File:Patent-FR-1060752.pdf + (Eric Ernest Samuel Wade)
- File:Patent-FR-66402E.pdf + (Eric Ernest Samuel Wade)
- File:Patent-GB-679065.pdf + (Eric Ernest Samuel Wade)
- File:Patent-GB-621354.pdf + (Eric Ernest Samuel Wade)
- File:Patent-GB-636823.pdf + (Eric Ernest Samuel Wade)
- File:Patent-GB-323129.pdf + (Eric Ernest Samuel Wade)
- File:Patent-GB-414929.pdf + (Eric Ernest Samuel Wade)
- File:Patent-GB-517388.pdf + (Eric Ernest Samuel Wade)
- File:Patent-GB-570091.pdf + (Eric Ernest Samuel Wade)
- File:Patent-GB-573545.pdf + (Eric Ernest Samuel Wade)
- File:Patent-GB-595572.pdf + (Eric Ernest Samuel Wade)
- File:Patent-GB-469699.pdf + (Eric Ernest Samuel Wade)
- File:Patent-GB-182620.pdf + (Eric Ernest Samuel Wade)
- File:Patent-GB-607060.pdf + (Eric Ernest Samuel Wade)
- File:Patent-US-1569783.pdf + (Eric G. Pearson)
- File:Patent-DE-952418.pdf + (Erich Buschle)
- File:Patent-US-D115544.pdf + (Frank C. Deli)
- File:Patent-US-1437180.pdf + (Ernest E. Hill)
- File:Patent-GB-190905849.pdf + (Ernest M. Wade)
- File:Patent-FR-422654.pdf + (Harry C. Johnson)
- File:Patent-GB-191211520.pdf + (Ernest M. Wade)
- File:Patent-US-972301.pdf + (Ernest M. Wade)
- File:Patent-FR-413467.pdf + (Ernest M. Wade)
- File:Patent-GB-191007239.pdf + (Harry C. Johnson)
- File:Patent-GB-191116979.pdf + (Harry C. Johnson)
- File:Patent-US-1124454.pdf + (Harry C. Johnson)
- File:Patent-GB-191129078.pdf + (August Eberstein)
- File:Patent-GB-191502959.pdf + (Ernest M. Wade)
- File:Patent-US-1122559.pdf + (Ernest M. Wade)
- File:Patent-FR-427646.pdf + (Harry C. Johnson)
- File:Patent-GB-191220490.pdf + (Ernest M. Wade)
- File:Patent-FR-462292.pdf + (Ernest M. Wade)
- File:Patent-GB-191211730.pdf + (Ernest M. Wade)
- File:Patent-GB-409074.pdf + (Ernest M. Wade)
- File:Patent-US-2684052.pdf + (Ernest W. Rickmeyer)
- File:Patent-DE-689408.pdf + (Ernest Wüller)
- File:Patent-DE-835414.pdf + (Ernst Rösler)
- File:Patent-US-1480302.pdf + (Ernst Rösler)
- File:Patent-US-1560485.pdf + (Ernst Rösler)
- File:Patent-US-2167815.pdf + (Ernst Rösler)
- File:Patent-US-2986119.pdf + (Ernst Rösler)
- File:Patent-DE-641120.pdf + (Ernst Rösler)
- File:Patent-DE-634140.pdf + (Ernst Rösler)
- File:Patent-DE-701860.pdf + (Ernst Rösler)
- File:Patent-DE-816965.pdf + (Ernst Rösler)
- File:Patent-DE-804532.pdf + (Ernst Rösler)
- File:Patent-DE-846221.pdf + (Ernst Rösler)
- File:Patent-DE-804767.pdf + (Ernst Rösler)
- File:Patent-DE-838871.pdf + (Ernst Rösler)
- File:Patent-DE-900908.pdf + (Ernst Rösler)
- File:Patent-DE-846072.pdf + (Ernst Rösler)
- File:Patent-DE-870806.pdf + (Ernst Rösler)
- File:Patent-DE-929470.pdf + (Ernst Rösler)
- File:Patent-DE-933553.pdf + (Ernst Rösler)
- File:Patent-DE-936849.pdf + (Ernst Rösler)
- File:Patent-DE-963224.pdf + (Ernst Rösler)
- File:Patent-DE-1009969.pdf + (Ernst Rösler)
- File:Patent-DE-1014459.pdf + (Ernst Rösler)
- File:Patent-GB-238110.pdf + (Ernst Rösler)
- File:Patent-ES-215091.pdf + (Ernst Rösler)
- File:Patent-US-2712299.pdf + (Ernst W. Rickmeyer)
- File:Patent-FR-453717.pdf + (Etienne Forbin)
- File:Patent-FR-568196.pdf + (Etienne Luciani-Tournon)
- File:Patent-DE-700837.pdf + (Etienne Panici)
- File:Patent-DE-818614.pdf + (Etienne Panici)
- File:Patent-FR-379615.pdf + (Eugen Hahn)
- File:Patent-GB-190713900.pdf + (Eugen Hahn)
- File:Patent-US-1851257.pdf + (Eugene Le Boeuf)
- File:Patent-US-525895.pdf + (Eugene M. Gordon)
- File:Patent-FR-595963.pdf + (Eugene Moreau)
- File:Patent-CA-327288.pdf + (Eugenio Verga)
- File:Patent-GB-334913.pdf + (Eugenio Verga)
- File:Patent-IT-268327.pdf + (Eugenio Verga)
- File:Patent-US-599616.pdf + (Eveline C. Lindley)
- File:Patent-GB-190502671.pdf + (Evelyn De La Rue)
- File:Patent-US-926611.pdf + (Evelyn De La Rue)
- File:Patent-US-814805.pdf + (Evelyn De La Rue)
- File:Patent-GB-190524851.pdf + (Evelyn De La Rue)
- File:Patent-US-2274470.pdf + (Farnham F. Boyle)
- File:Patent-US-D142392.pdf + (Farnham F. Boyle)
- File:Patent-US-2833251.pdf + (Farnham F. Boyle)
- File:Patent-DE-264883.pdf + (Felix Riesemberg)
- File:Patent-US-1180946.pdf + (Felix Riesenberg)
- File:Patent-US-1037660.pdf + (Felix Riesenberg)
- File:Patent-US-955205.pdf + (Felix Riesenberg)
- File:Patent-US-1050295.pdf + (Felix Riesenberg)
- File:Patent-GB-191100218.pdf + (Felix Riesenberg)
- File:Patent-GB-191218716.pdf + (Felix Riesenberg)
- File:Patent-US-1251421.pdf + (Felix Riesenberg)
- File:Patent-US-1249501.pdf + (Felix Riesenberg)
- File:Patent-GB-118118.pdf + (Felix Riesenberg)
- File:Patent-US-RE14474.pdf + (Felix Riesenberg)
- File:Patent-DE-249042.pdf + (Ferdinand Gizman)
- File:Patent-US-1290365.pdf + (Ferdinand Scheiblecker)
- File:Patent-FR-911164.pdf + (Fernand Victor Désiré Albert Outrequin)
- File:Patent-DE-589001.pdf + (Firma G. Rau)
- File:Patent-FR-730165.pdf + (Firme G. Rau)
- File:Patent-FR-701215.pdf + (Firme G. Rau)
- File:Patent-FR-726288.pdf + (Firme G. Rau)
- File:Patent-DE-577248.pdf + (Firme G. Rau)
- File:Patent-DE-590795.pdf + (Firme G. Rau)
- File:Patent-DE-560539.pdf + (Firme G. Rau)
- File:Patent-FR-750757.pdf + (Firme G. Rau)
- File:Patent-US-2522555.pdf + (Floyd E. Bartell)
- File:Patent-US-2648309.pdf + (Floyd E. Bartell)
- File:Patent-DE-882047.pdf + (Harlan H. Zodtner)
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