Proprietà:Patent title

Da FountainPen.
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Titolo del brevetto (come riportato sullo stesso).

Showing 20 pages using this property.
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Improvements in or relating to Fountain Pens  +
Improvements in Methods of Working Upon Surfaces of Ebonite and other Vulcanized Rubber Articles  +
Improvements in or relating to fountain or reservoir pens  +
Improvements in tools for poster writing  +
Improvements in or relating to Fountain or Reservoir Pens  +
Improvements in art of manufacturing fountain pen caps and barrels  +
Loose lead pencil holder  +
Improvements in and relating to Fountain Pens  +
Improvements in Reservoir Pens  +
Improvements in and relating to Fountain Pens  +
Improvements in Propelling Pencils  +
Improvements in or relating to containers for liquid or semiliquid adhesives  +
Porte-mine  +
Improvements in or relating to Fountain Pens  +
Improvements in Reservoir Pens  +
Improvements in or relating to Fountain Pens  +
Improvements in or relating to Fountain Pens  +
Improvements in Fountain Pens  +
Wechselschreibstift  +
Improvements in or relating to Fountain Pens  +