File:Patent-US-1284156.pdf

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Original file(1,159 × 1,704 pixels, file size: 209 KB, MIME type: application/pdf, 4 pages)
Inventor

Walter A. Sheaffer

Assignee

Walter A. Sheaffer

Country

US

Application N°

180052

Application Date

1917-07-12

Patent N°

1284156

Brevettato

1918-11-05

Priorità

1917-07-12

Brand

Sheaffer

Title

Pencil

Description

Matita meccanica

Riferimenti esterni

Informazioni

Brevetto per una matita meccanica.

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Date/TimeThumbnailDimensionsUserComment
current02:02, 14 July 2012Thumbnail for version as of 02:02, 14 July 20121,159 × 1,704, 4 pages (209 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=Walter A. Sheaffer |Assignee=Walter A. Sheaffer |Country=US |ApplicationNum=180052 |ApplicationDate=1917-07-12 |PatentNum=1284156 |PatentDate=1918-11-05 |PriorityDate=1917-07-12 |Titolo=Pencil |Marca=Sheaffer |Descrizione=Matita ...
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