File:Patent-US-1313056.pdf

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Inventor	Oswald H. Blackwood, Fred Pearson
Assignee	Oswald H. Blackwood, Fred Pearson
Country	US
Application N°	240978
Application Date	1918-06-20
Patent N°	1313056
Brevettato	1919-08-12
Priorità	1918-06-20
Brand	Unbranded
Title	Fountain-pen
Description	Stilografica a doppio serbatoio

Brevetto per una stilografica a doppio serbatoio.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	00:04, 25 December 2020		1,159 × 1,704, 4 pages (190 KB)	Piccardi (talk \| contribs)	{{PatentInfo \|Inventor=Oswald H. Blackwood, Fred Pearson \|Assignee=Oswald H. Blackwood, Fred Pearson \|Country=US \|ApplicationNum=240978 \|ApplicationDate=1918-06-20 \|PatentNum=1313056 \|PatentDate=1919-08-12 \|PriorityDate=1918-06-20 \|Titolo=Fountain-pen...

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