Proprietà:Patent description

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Breve (una riga) descrizione del brevetto.

precedenti 202050100250500successivi 20
Showing 20 pages using this property.
P
Patent-US-2483329.pdf +
Penna a sfera  +
Patent-US-2483603.pdf +
[[Pennino]] tubolare  +
Patent-US-2484640.pdf +
Matita meccanica  +
Patent-US-2489463.pdf +
Inchiostro blu stabile  +
Patent-US-2489983.pdf +
[[Alimentatore]] e [[pennino carenato]]  +
Patent-US-2491082.pdf +
Penna a sfera  +
Patent-US-2498384.pdf +
[[Caricamento a siringa]]  +
Patent-US-2500833.pdf +
Sistema di caricamento  +
Patent-US-2503043.pdf +
Base [[stiloforo]]  +
Patent-US-2503061.pdf +
Base [[stiloforo]]  +
Patent-US-2503080.pdf +
Matita meccanica  +
Patent-US-2504420.pdf +
Matita meccanica  +
Patent-US-2506035.pdf +
Penna a sfera  +
Patent-US-2509234.pdf +
Montaggio [[cappuccio]]  +
Patent-US-2509465.pdf +
Doppio serbatoio  +
Patent-US-2510634.pdf +
Base [[stiloforo]]  +
Patent-US-2510648.pdf +
Base [[stiloforo]]  +
Patent-US-2512004.pdf +
[[Alimentatore]]  +
Patent-US-2513380.pdf +
Pennino a sfera  +
Patent-US-2517522.pdf +
Matita meccanica  +
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