Proprietà:Patent title
Titolo del brevetto (come riportato sullo stesso).
P
Improvements in or relating to fountain pens +
Improved propelling pencil +
Fountain pen +
Improvements in writing instruments +
Improvements in or relating to fountain pens +
Improvements in pocket clips for fountain pens, pencils and the like +
Improvements in or relating to multiple lead pencils +
Improvements in fountain pens, propelling pencils and the like +
Feed device for fountain pen nibs +
Fountain pen +
Improvements in or relating to fountain pens +
Stylographe +
Improvements in Nib Sections for Fountain Pens +
Improvements in or relating to Fountain Pens +
Improvements in reservoir pens +
Improvements in or relating to fountain pens +
Improvements in pocket clips for fountain pens, pencils and the like +
Improvements in Nib Sections for Fountain Pens +
Improvements in and relating to ball point pens +
Improvements relating to fountain pens +