File:Patent-US-2335223.pdf

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Brevetto per sezione ed alimentatore di una stilografica a pennino coperto. Riferimenti a nº US-2328116.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	13:31, 11 August 2013		1,159 × 1,704, 4 pages (197 KB)	Piccardi (talk \| contribs)	{{PatentInfo \|Inventor=Norman E. Weigel \|Assignee=Norman E. Weigel \|Country=US \|ApplicationNum=493198 \|ApplicationDate=1943-07-02 \|PatentNum=2335223 \|PatentDate=1943-11-23 \|PriorityDate=1943-07-02 \|Titolo=Fountain pen \|Marca=Wearever \|Descrizione=Sezio...

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