Proprietà:Patent title

Titolo del brevetto (come riportato sullo stesso).

Showing 20 pages using this property.
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Fountain drawing pen  +
Check protector  +
Fountain Pen  +
Feed bar for fountain pens  +
Lead pencil  +
Self-filling fountain pen  +
Fountain pen  +
Stopper for inkbottles  +
Lettering pen  +
Pencil with floating clutch  +
Magazine pencil  +
Improvements in inkstands  +
Fountain-pen clip  +
Self-loading magazine pencil  +
Mechanical pencil  +
Mechanical pencil  +
Reservoir pen and the like  +
Fountain pen  +