Proprietà:Patent title
Titolo del brevetto (come riportato sullo stesso).
P
Writing instrument +
Fountain pen +
Fountain pen +
Writing instrument +
Ball-point writing instrument +
Fountain pen +
Fountain pen +
Fountain pen +
Clip for mechanical pencils, fountain pens, and the like +
Fountain pen +
Mechanical pencil with step-by-steplead feeding means +
Clip for writing instruments +
Clip for writing instruments +
Clip for writing instruments +
Fountain pen +
Changeable propelling pencil +
Ball-point writing instrument +
Writing instrument +
Fountain pen +