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 or Reservoir Pens  +
Improvements in pens, pencils, and similar writing instruments  +
Improvements in or relating to self-filling fountain pens  +
Improved fountain pen  +
Improvements in fountain pens  +
Improvements in and relating to Fountain Pens  +
Improvements in and relating to Fountain Pens  +
Improvements in or relating to self-filling fountain pens  +
Improvements relating to propelling pencils  +
Improvements in or relating to Fountain Pens  +
Improvements in and relating to magazine lead pencils with selectively interchangeable lead holders  +
Improvements in or relating to stylographic pens  +
Improvements in or relating to self-filling fountain pens  +
Writing implement  +
Improvements in and relating to magazine lead pencils with selectively interchangeable lead holders  +
Improvements in or relating to fountain pens  +
Improvements in or relating to pencil holders  +
Improvements in or relating to propelling pencils  +
Improvements in self-filling fountain pens  +
Improvements in and relating to writing implement having interchangeable leads  +