File:Patent-FR-823652.pdf

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Brevetto per una matita meccanica multipla. Priorità dal brevetto tedesco. Stessa invenzione di nº US-2163515. Stessa invenzione di nº GB-482097.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	00:53, 12 December 2013		1,295 × 1,752, 7 pages (553 KB)	Piccardi (talk \| contribs)	{{PatentInfo \|Inventor=Kurt Fend \|Assignee=Kurt Fend \|Country=FR \|ApplicationNum=823652 \|ApplicationDate=1937-06-28 \|PatentNum=823652 \|PatentDate=1938-01-25 \|PriorityDate=1936-07-23 \|Titolo=Porte-mines multiple \|Marca=Fend \|Descrizione=Matita meccanica...

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