Concetto:Patented in 1953
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Descrizione del concetto "Patented in 1953"Feed RDF
Patents registered in 1953
[[Categoria:Patents]] [[Patent date::≥1 gennaio 1953]] [[Patent date::≤31 dicembre 1953]]
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- File:Patent-GB-688902.pdf +
- File:Patent-US-2624315.pdf +
- File:Patent-US-2628431.pdf +
- File:Patent-US-2631569.pdf +
- File:Patent-US-2640297.pdf +
- File:Patent-US-2642842.pdf +
- File:Patent-US-2645205.pdf +
- File:Patent-US-2645206.pdf +
- File:Patent-US-2648309.pdf +
- File:Patent-US-D169456.pdf +
- File:Patent-US-RE23683.pdf +