Proprietà:Application date
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Data di richiesta del brevetto.
P
March 16, 1928 +
December 22, 1928 +
September 15, 1934 +
November 29, 1935 +
June 8, 1936 +
April 19, 1946 +
September 24, 1951 +
April 20, 1897 +
September 8, 1962 +
November 8, 1963 +
March 30, 1906 +
September 25, 1906 +
January 14, 1908 +
April 9, 1900 +
July 10, 1908 +
January 28, 1899 +
August 10, 1910 +
December 28, 1911 +
June 14, 1913 +
September 25, 1913 +