Proprietà:Patent title
Titolo del brevetto (come riportato sullo stesso).
P
Improvements in stylographic fountain-pens +
Writing Pen +
Writing instrument +
Mechanical pencil +
Mechanical magazine pencil +
Mechanical pencil +
Fountain pen +
Fountain pen +
Stylographic pen +
Fountain pen +
Mechanical pencil +
Pen point and method of making the same +
Penholder +
Reservoir desk stand +
Mechanical pencil +
Stylographic pen +
Fountain pen +
Fountain pen +
Mechanical pencil +
Penholder +