Proprietà:Patent title

Titolo del brevetto (come riportato sullo stesso).

Showing 20 pages using this property.
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Ink-pencil  +
Improvement in fountain-pens  +
Clip for pens or pencils  +
Fountain-pen  +
Fountain-pen  +
Clip for fountain-pens  +
Clip for fountain-pens  +
Fountain-pen  +
Fountain-pen  +
Clip for pen-caps  +
Attachment for fountain-pens  +
Fountain or reservoir pen  +
Fountain or reservoir pen  +
Fountain-pen  +
Fountain-pen  +
Improvement in pencil-cases  +
Mechanical pencil  +
Fountain-pen  +
Dispensing-stopper for ink-bottles  +
Self-filler fountain-pen  +