Proprietà:Patent title
Titolo del brevetto (come riportato sullo stesso).
P
Fountain pen +
Fountain pen +
Apparatus for molding objects of pyralin and other material that is plastic when heated +
Fountain pen +
Fountain pen +
Fountain pen +
Fountain pen +
Clip +
Soluble ink fountain pen +
Soluble ink fountain pen +
Pencil +
Improvement in fountain-pens +
Mechanical pencil +
Soluble ink fountain pen +
Fountain pen +
Writing pen +
Pencil +
Fountain pen +
Fountain pen +
Fountain pen +