Proprietà:Patent title
Titolo del brevetto (come riportato sullo stesso).
P
Machine for inlaying +
Ornamental tubing +
Fountain pen +
Fountain pen +
Fountain pen +
Fountain pen +
Ruthenium alloy pen point +
Fountain pen +
Fountain pen +
Fountain pen +
Fountain pen +
Apparatus for tipping metal bases with metal tips +
Mechanical pencil +
Fountain pen +
Fountain pen +
Filling mechanism for fountain pens +
Mechanical pencil +
Mechanical pencil +
Fountain pen +