Proprietà:Patent title
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Titolo del brevetto (come riportato sullo stesso).
P
Fountain-pen +
Feeder for fountain-pens +
Fountain pen +
Fountain-pen +
Fountain-pen +
Fountain-pen +
Fountain-pen +
Self-filling fountain-pen +
Self-filling fountain-pen +
Finger-guard for penholders or pencils +
Reservoir pen +
Fountain-pen +
Fountain-pen +
Fountain-pen and pencil holder +
Fountain-pen +
Self-filling fountain-pen +
Fountain-pen +
Self-filling fountain-pen +
Safety-clip for holding pens and pencils +
Fountain-pen +