Proprietà:Patent title

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Titolo del brevetto (come riportato sullo stesso).

precedenti 202050100250500successivi 20
Showing 20 pages using this property.
P
Patent-US-1317472.pdf +
Fountain pen  +
Patent-US-1317817.pdf +
Fountain-pen  +
Patent-US-132008.pdf +
Improvement in alloys for the manufacture of pens  +
Patent-US-1320393.pdf +
Fountain-pen  +
Patent-US-1321188.pdf +
Self-filling fountain-pen  +
Patent-US-1325844.pdf +
Fountain-pen  +
Patent-US-1326206.pdf +
Fountain-pen cap  +
Patent-US-1328215.pdf +
Lever-filler for fountain-pens  +
Patent-US-1334332.pdf +
Pencil-clip  +
Patent-US-1335580.pdf +
Fountain-pen  +
Patent-US-1336119.pdf +
Stylographic fountain-pen  +
Patent-US-1336572.pdf +
Fountain-pen  +
Patent-US-1339359.pdf +
Penholder-clip  +
Patent-US-1340277.pdf +
Fountain-pen  +
Patent-US-1342736.pdf +
Fountain-pen  +
Patent-US-1344434.pdf +
Mechanical pencil  +
Patent-US-1346045.pdf +
Pressure-bar mechanism  +
Patent-US-1347800.pdf +
Fountain-pen  +
Patent-US-1347901.pdf +
Retarded delivery device for fountain-pens  +
Patent-US-1348211.pdf +
Fountain-pen-filling device  +
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