File:Patent-US-1085714.pdf

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Brevetto per la costruzione di una penna a stilo. Prima richiesta del 1910-06-18, Serial No. 567562.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	14:28, 21 March 2021		1,159 × 1,704, 4 pages (194 KB)	Piccardi (talk \| contribs)	{{PatentInfo \|Assignee=Joseph Wallace \|Country=US \|ApplicationNum=807565 \|ApplicationDate=1913-12-18 \|PatentNum=1085714 \|PatentDate=1914-02-03 \|PriorityDate=1913-12-18 \|Titolo=Ink-pencil \|Marca=Inkograph \|Descrizione=Penna a stilo }} ==Informazioni== B...

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