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-2267147.pdf +
Process for manufacturing pen nibs  +
Patent-US-2272674.pdf +
Safety clasp  +
Patent-US-2274393.pdf +
Retaining clasp  +
Patent-US-2274470.pdf +
Fountain pen  +
Patent-US-2278907.pdf +
Fountain pen  +
Patent-US-2279803.pdf +
Security clip  +
Patent-US-2282840.pdf +
Fountain pen  +
Patent-US-2283333.pdf +
Fountain pen  +
Patent-US-2286878.pdf +
Adjustable eraser holder  +
Patent-US-2289963.pdf +
Fountain pen  +
Patent-US-2292381.pdf +
Fountain pen feed  +
Patent-US-2292683.pdf +
Clip and cap for mechanical pencils, fountain pens, and the like  +
Patent-US-2293343.pdf +
Mechanical pencil  +
Patent-US-2293621.pdf +
Mechanical pencil  +
Patent-US-2293622.pdf +
Mechanical pencil  +
Patent-US-2293623.pdf +
Mechanical pencil  +
Patent-US-2303373.pdf +
Fountain pen  +
Patent-US-2303374.pdf +
Fountain pen  +
Patent-US-2304832.pdf +
Ink feeding means for writing pens  +
Patent-US-2305287.pdf +
Fountain pen  +
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