Concetto:Patented in 1961
Descrizione del concetto "Patented in 1961"Feed RDF
Patents registered in 1961
[[Categoria:Patents]] [[Patent date::≥1 gennaio 1961]] [[Patent date::≤31 dicembre 1961]]
P
- File:Patent-CH-351863.pdf +
- File:Patent-CH-353996.pdf +
- File:Patent-DE-974635.pdf +
- File:Patent-GB-860294.pdf +
- File:Patent-GB-885374.pdf +
- File:Patent-GB-885375.pdf +
- File:Patent-US-2979030.pdf +
- File:Patent-US-2983254.pdf +
- File:Patent-US-2986119.pdf +
- File:Patent-US-2987044.pdf +
- File:Patent-US-D191555.pdf +