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-1537226.pdf +
Lever filler for fountain pens with metal casings  +
Patent-US-1540416.pdf +
Fountain pen  +
Patent-US-1540763.pdf +
Fountain pen  +
Patent-US-1544161.pdf +
Drawing-pen nib, more particularly for fountain pens  +
Patent-US-1551601.pdf +
Magazine pencil  +
Patent-US-1551604.pdf +
Magazine pencil  +
Patent-US-1554517.pdf +
Combined pen or pencil clip and envelope opener  +
Patent-US-1554604.pdf +
Pencil  +
Patent-US-1554803.pdf +
Pen or pencil clip  +
Patent-US-1555407.pdf +
Fountain  +
Patent-US-1556701.pdf +
Mechanical pencil  +
Patent-US-1557357.pdf +
Fountain pen  +
Patent-US-1558553.pdf +
Fountain pen  +
Patent-US-1560485.pdf +
Automatically-filling fountain pen  +
Patent-US-1561590.pdf +
Fountain pen  +
Patent-US-1562267.pdf +
Fountain pen  +
Patent-US-1567059.pdf +
Fountain pen  +
Patent-US-1567823.pdf +
Fountain pen  +
Patent-US-1567824.pdf +
Fountain pen  +
Patent-US-1567910.pdf +
Magazine pencil  +
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