Proprietà:Patent title
Titolo del brevetto (come riportato sullo stesso).
P
Improvements relating to fountain pens +
Improvements in or relating to self-filling fountain pens +
Improvements in Fountain-pens +
Closure for Ink Bottles +
Improvements in or relating to fountain pens +
Improvements relating to propelling pencils +
Improvements in or relating to fountain pen barrels and the like +
Improvements in or relating to fountain pens +
Improvements in or relating to fountain pens, propelling pencils and the like +
Improvements in and relating to fountain pens +
Improvements in or relating to stylographic pens +
Improvements in or relating to self-filling fountain pens +
Improvements relating to Fountain Pens +
Improvements in and relating to closures for containers for liquids +
Improvements in or relating to Fountain Pens +
Improvements in fountain pens +
Improvements in stylographs +
Improvements in or relating to self-filling fountain pens +
Improvements in self-filling fountain pens +
A device for use in the preparation of ink +