File:Patent-US-2028855.pdf

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Original file(1,159 × 1,704 pixels, file size: 461 KB, MIME type: application/pdf, 7 pages)

Dettagli

Inventor

Arthur Winter

Assignee

Arthur Winter

Country

US

Application N°

743673

Application Date

1934-09-12

Patent N°

2028855

Brevettato

1936-01-28

Priorità

1934-09-12

Brand

Dictator,Hicks

Title

Mechanical pencil

Description

Matita meccanica

Riferimenti esterni

Informazioni

Brevetto per una matita meccanica. Nelle immagini riportate in questo articolo il brevetto viene riportato su alcune matite meccaniche della Hicks.

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current23:49, 7 June 2021Thumbnail for version as of 23:49, 7 June 20211,159 × 1,704, 7 pages (461 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=Arthur Winter |Assignee=Arthur Winter |Country=US |ApplicationNum=743673 |ApplicationDate=1934-09-12 |PatentNum=2028855 |PatentDate=1936-01-28 |PriorityDate=1934-09-12 |Titolo=Mechanical pencil |Marca=Dictator |Descrizione=Matit...

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