File:Patent-US-2579342.pdf

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Brevetto per un sistema di caricamento presumibile evoluzione del leverless. Priorità dal brevetto inglese. Estensione del brevetto n° US-2554641. Riferimenti a nº US-785653, nº US-1733780, nº US-1892369 e nº US-2377444, ed inoltre nº FR-745358, nº GB-109032, nº GB-416648, nº GB-595652.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	23:34, 17 April 2013		1,159 × 1,704, 4 pages (227 KB)	Piccardi (talk \| contribs)	{{PatentInfo \|Inventor=Edward Stephen Sears \|Assignee=Mabie, Todd & Company Limited \|Country=US \|ApplicationNum=794901 \|ApplicationDate=1947-12-31 \|PatentNum=2579342 \|PatentDate=1951-12-18 \|PriorityDate=1945-06-15 \|Titolo=Fountain pen \|Marca=Swan \|Desc...

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