File:Patent-US-1490246.pdf

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Original file(1,159 × 1,704 pixels, file size: 164 KB, MIME type: application/pdf, 3 pages)
Inventor

John C. Wahl

Assignee

The Wahl Company

Country

US

Application N°

444791

Application Date

1921-02-14

Patent N°

1490246

Brevettato

1924-04-15

Priorità

1921-02-14

Brand

Eversharp

Title

Mechanical pencil

Description

Matita meccanica

Riferimenti esterni

Informazioni

Brevetto per una matita meccanica. Riferimenti a nº US-1151016.

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Date/TimeThumbnailDimensionsUserComment
current19:25, 21 June 2013Thumbnail for version as of 19:25, 21 June 20131,159 × 1,704, 3 pages (164 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=John C. Wahl |Assignee=The Wahl Company |Country=US |ApplicationNum=444791 |ApplicationDate=1921-02-14 |PatentNum=1490246 |PatentDate=1924-04-15 |PriorityDate=1921-02-14 |Titolo=Mechanical pencil |Marca=Eversharp |Descrizione=Mat...
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