Concetto:Patented in 1919
Descrizione del concetto "Patented in 1919"Feed RDF
Patents registered in 1919
[[Categoria:Patents]] [[Patent date::≥1 gennaio 1919]] [[Patent date::≤31 dicembre 1919]]
P
- File:Patent-CH-81788.pdf +
- File:Patent-DK-25155C.pdf +
- File:Patent-DK-25360C.pdf +
- File:Patent-FR-20859E.pdf +
- File:Patent-FR-490999.pdf +
- File:Patent-FR-491375.pdf +
- File:Patent-FR-496693.pdf +
- File:Patent-FR-497658.pdf +
- File:Patent-GB-118118.pdf +
- File:Patent-GB-125906.pdf +
- File:Patent-GB-127532.pdf +
- File:Patent-GB-127562.pdf +
- File:Patent-GB-128009.pdf +
- File:Patent-GB-129115.pdf +
- File:Patent-US-1290365.pdf +
- File:Patent-US-1292736.pdf +
- File:Patent-US-1299642.pdf +
- File:Patent-US-1300849.pdf +
- File:Patent-US-1301057.pdf +
- File:Patent-US-1301317.pdf +