Proprietà:Patent title
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Titolo del brevetto (come riportato sullo stesso).
P
Improvements in Fountain Pens +
Improvements in or relating to fountain pens +
Reservoir drawing pen +
Improvements in or relating to fountain or reservoir pens +
Improvements in pencil holders +
Improvements in, or relating to fountain pens +
Improvements in and relating to pen-holders +
Improvements in self-filling reservoir pens +
Improvements in and relating to fountain pens +
Improvements in or relating to means for retaining pens, pencils, and the like, in the pockets of garments +
Pencil holder +
Improvements in reservoir pens +
Improvements relating to polishing machines +
Improvements in or relating to fountain pens +
Improvements in the manufacture of pens +
Improvements in or relating to fountain or reservoir pens +
Improvements in or relating to fountain pens +
Improvements in or relating to fountain or reservoir pens +
Improvements in fountain or reservoir pens +
Improvements in pencil cases +