File:Patent-US-2356109.pdf

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Dettagli

Brevetto per la costruzione semplificata del sacchetto di inchiostro.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	16:00, 21 March 2021		1,159 × 1,704, 4 pages (210 KB)	Piccardi (talk \| contribs)	{{PatentInfo \|Assignee=Joseph Wallace \|Country=US \|ApplicationNum=435735 \|ApplicationDate=1942-03-21 \|PatentNum=2356109 \|PatentDate=1944-08-15 \|PriorityDate=1942-03-21 \|Titolo=Fountain pen \|Marca=Inkograph \|Descrizione=Sacchetto dell'inchiostro }} ==In...

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