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-2186870.pdf +
Mechanical pencil  +
Patent-US-2187528.pdf +
Fountain pen  +
Patent-US-2188662.pdf +
Fountain pen  +
Patent-US-2189696.pdf +
Stylographic pen  +
Patent-US-2200042.pdf +
Fountain pen  +
Patent-US-2203093.pdf +
Mechanical pencil  +
Patent-US-2208460.pdf +
Pen point and method of making the same  +
Patent-US-2213931.pdf +
Penholder  +
Patent-US-2215630.pdf +
Reservoir desk stand  +
Patent-US-2216780.pdf +
Mechanical pencil  +
Patent-US-2217502.pdf +
Stylographic pen  +
Patent-US-2217755.pdf +
Fountain pen  +
Patent-US-2218536.pdf +
Fountain pen  +
Patent-US-2219769.pdf +
Mechanical pencil  +
Patent-US-2222599.pdf +
Penholder  +
Patent-US-2223541.pdf +
Fountain pen  +
Patent-US-2224162.pdf +
Letter opener  +
Patent-US-2225864.pdf +
Fountain pen  +
Patent-US-2228250.pdf +
Manufacture of writing pens  +
Patent-US-222959.pdf +
Improvement in fountain-pens  +
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