Proprietà:Patent title

Titolo del brevetto (come riportato sullo stesso).

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Lead and crayon holder  +
Explosive fountain pen  +
Fountain pen  +
Fountain pen  +
Writing pen  +
Fountain pen  +
Stylographic Fountain-Pen  +
Pen nib with spreader  +
Fountain pen  +
Writing instrument  +
Writing equipment  +
Fountain pen  +
Writing instrument  +
Ink reservoir and flow control  +
Writing instrument  +
Pen and pocket clip construction  +
Fountain pen  +
Fountain pen desk set  +
Fountain pen  +