File:Patent-CH-259145.pdf

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Brevetto per una matita meccanica. Priorità dal brevetto francese. Stessa invenzione di nº FR-1001319. Stessa invenzione di nº GB-623792. Stessa invenzione di nº US-2526268. Stessa invenzione di nº BE-472541.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	22:42, 19 April 2021		1,296 × 1,754, 3 pages (155 KB)	Piccardi (talk \| contribs)	{{PatentInfo \|Assignee=A. J. Fagard & C.ie \|Country=CH \|ApplicationNum=259145 \|ApplicationDate=1947-04-10 \|PatentNum=259145 \|PatentDate=1949-01-15 \|PriorityDate=1946-04-15 \|Titolo=Porte-mine \|Marca=JiF \|Descrizione=Matita meccanica }} ==Informazioni==...

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