File:Patent-US-1490245.pdf

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Original file(1,159 × 1,704 pixels, file size: 104 KB, MIME type: application/pdf, 2 pages)
Inventor

John C. Wahl

Assignee

The Wahl Company

Country

US

Application N°

369683

Application Date

1920-03-29

Patent N°

1490245

Brevettato

1924-04-15

Priorità

1920-03-29

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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current19:22, 21 June 2013Thumbnail for version as of 19:22, 21 June 20131,159 × 1,704, 2 pages (104 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=John C. Wahl |Assignee=The Wahl Company |Country=US |ApplicationNum=369683 |ApplicationDate=1920-03-29 |PatentNum=1490244 |PatentDate=1924-04-15 |PriorityDate=1920-03-29 |Titolo=Mechanical pencil |Marca=Eversharp |Descrizione=Mat...
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