Proprietà:Patent title
Titolo del brevetto (come riportato sullo stesso).
P
Writing instruments +
Fountain pen nib mounting +
Fountain pen-holder +
Filler device for fountain pens +
Clip mountings for fountain pens +
Fountain-pen +
Modular fountain pen +
Fountain-pen +
Self-filling fountain pens +
Fountain pen +
Fountain-pen +
Fountain pen +
Clip mounting device for writing tools +
Fountain pen +
Inkstand +
Retractable closure for pen casings +
Retractable nib fountain-pen +
Nib unit fixing device for writing pens +
Fountain-pen +
Fountain attachment for pens +