Proprietà:Patent title
Titolo del brevetto (come riportato sullo stesso).
P
Fountain pen +
Art of manufacturing fountain-pen caps and barrels +
Fountain pen +
Fountain or reservoir pen +
Mechanical pencil +
Fountain-pen +
Fountain pen cap +
Fountain pen +
Fountain pen +
Fountain pen +
Fountain pen +
Pen and pencil-case +
Cap for fountain pens +
Fountain-pen filler +
Method of working upon surfaces of ebonite articles +
Self-filling stylographic pen +
Fountain pen +
Clamp or clip for fountain pens +
Fountain pen +
Pen-filling mechanism +