Concetto:Patented in 1917
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Descrizione del concetto "Patented in 1917"Feed RDF
Patents registered in 1917
[[Categoria:Patents]] [[Patent date::≥1 gennaio 1917]] [[Patent date::≤31 dicembre 1917]]
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- File:Patent-FR-483349.pdf +
- File:Patent-GB-100592.pdf +
- File:Patent-GB-104980.pdf +
- File:Patent-GB-110270.pdf +
- File:Patent-US-1212297.pdf +
- File:Patent-US-1212744.pdf +
- File:Patent-US-1213725.pdf +
- File:Patent-US-1214310.pdf +
- File:Patent-US-1216732.pdf +
- File:Patent-US-1220875.pdf +
- File:Patent-US-1228177.pdf +
- File:Patent-US-1236069.pdf +
- File:Patent-US-1237619.pdf +
- File:Patent-US-1238657.pdf +
- File:Patent-US-1242323.pdf +
- File:Patent-US-1243383.pdf +
- File:Patent-US-1246232.pdf +
- File:Patent-US-1247037.pdf +
- File:Patent-US-1247169.pdf +
- File:Patent-US-1249501.pdf +
- File:Patent-US-1250533.pdf +
- File:Patent-US-1251421.pdf +
- File:Patent-US-RE14397.pdf +