File:Patent-US-2217502.pdf

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Original file(1,159 × 1,704 pixels, file size: 236 KB, MIME type: application/pdf, 4 pages)

Dettagli

Inventor

Joseph Wallace

Assignee

Joseph Wallace

Country

US

Application N°

327761

Application Date

1940-04-04

Patent N°

2217502

Brevettato

1940-10-08

Priorità

1940-04-04

Brand

Inkograph

Title

Stylographic pen

Description

Penna a stilo

Riferimenti esterni

Informazioni

Brevetto per la costruzione di una penna a stilo.

File history

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Date/TimeThumbnailDimensionsUserComment
current16:04, 21 March 2021Thumbnail for version as of 16:04, 21 March 20211,159 × 1,704, 4 pages (236 KB)Piccardi (talk | contribs){{PatentInfo |Assignee=Joseph Wallace |Country=US |ApplicationNum=327761 |ApplicationDate=1940-04-04 |PatentNum=2217502 |PatentDate=1940-10-08 |PriorityDate=1940-04-04 |Titolo=Stylographic pen |Marca=Inkograph |Descrizione=Penna a stilo }} ==Informazio...

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