Proprietà:Patent title

Titolo del brevetto (come riportato sullo stesso).

Showing 20 pages using this property.
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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  +
Fountain pen  +
Fountain pen  +
Fountain pen  +
Improvements in or relating to fountain pens, propelling pencils and the like  +
Improvements in or relating to ink reservoir pens  +
Improvements in flow testing apparatus  +
Improvements in and relating to immersion testing apparatus  +
Improvements in or relating to fountain pens  +
Fountain pens  +
Self-filling fountain pens  +