Proprietà:Patent title
Titolo del brevetto (come riportato sullo stesso).
P
Improvements in or relating to pencils +
Improvements in or relating to fountain pens +
Improvements in or relating to Writing Points or Nibs +
Improvements in or relating to Fountain or Reservoir Pens +
Improvements in fountain pens +
Fountain pen +
Improvements in or relating to Fountain Pens +
Improvements in or relating to fountain pens +
Improvements in or relating to Retaining Means for Fountain Pens, Propelling Pencils, and the like in Garment Pockets +
Improvements in or relating to mechanically operated lead pencils +
Means for filling the necks of bottles +
Improvements in or relating to Fountain or Reservoir Pens +
Improvements in or relating to Fountain Pens +
Improvements in or relating to self-filling fountain pens +
Improvements in and relating to Fountain Pens +
Improvements in and relating to Fountain Pens +
Improvements in or relating to Reservoir Pens +
Improvements in or relating to fountain pens +
Improvements in or relating to fountain pens +
Improvements in self-filling fountain pens +