File:Patent-DE-821773.pdf

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Dettagli

Brevetto per una matita meccanica.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	21:41, 25 March 2021		1,296 × 1,754, 3 pages (134 KB)	Piccardi (talk \| contribs)	{{PatentInfo \|Assignee=Geha Werke G.M.B.H. \|Country=DE \|ApplicationNum=G2953 \|ApplicationDate=1950-07-06 \|PatentNum=821773 \|PatentDate=1951-11-19 \|PriorityDate=1950-07-06 \|Titolo=Druckbleistift \|Marca=Geha \|Descrizione=Matita meccanica }} ==Informazion...

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