Proprietà:Patent title
Titolo del brevetto (come riportato sullo stesso).
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Fountain drawing pen +
Check protector +
Fountain Pen +
Feed bar for fountain pens +
Lead pencil +
Self-filling fountain pen +
Pencil +
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 +
Pencil +
Reservoir pen and the like +
Fountain pen +