Proprietà:Patent title

Titolo del brevetto (come riportato sullo stesso).

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Improvements in and relating to twin fountain pens  +
Improvements in or relating to pencil holders  +
Improvements in and relating to Ink Wells and in particular Ink Wells suitable for use with Self-filling Fountain Pens  +
Improvements in or relating to Pencils  +
Improvements in or relating to Reservoir Pens  +
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  +