Proprietà:Patent title
Titolo del brevetto (come riportato sullo stesso).
P
Writing instrument +
Writing instrument +
Fountain pen +
Writing instrument +
Ink feed and overflow collector means for fountain pens +
Fountain pen +
Inkwell +
Fountain pen +
Fountain pen cleaning device +
Fountain pen with positioning means for the ink sac thereof +
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 +