Proprietà:Patent title

Titolo del brevetto (come riportato sullo stesso).

Showing 20 pages using this property.
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Mechanical pencil  +
Fountain pen  +
Fountain pen  +
Stylographic pen  +
Fountain pen  +
Mechanical pencil  +
Pen point and method of making the same  +
Reservoir desk stand  +
Mechanical pencil  +
Stylographic pen  +
Fountain pen  +
Fountain pen  +
Mechanical pencil  +
Fountain pen  +
Letter opener  +
Fountain pen  +
Manufacture of writing pens  +
Improvement in fountain-pens  +