File:Patent-US-2078433.pdf

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Original file(1,159 × 1,704 pixels, file size: 296 KB, MIME type: application/pdf, 4 pages)

Dettagli

Inventor

Arthur Winter

Assignee

Arthur Winter

Country

US

Application N°

54978

Application Date

1935-12-18

Patent N°

2078433

Brevettato

1937-04-27

Priorità

1935-12-18

Brand

Dictator

Title

Lead feeding pencil

Description

Matita meccanica

Riferimenti esterni

Informazioni

Brevetto per una matita meccanica. Riferimenti a n° US-2028855.

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Date/TimeThumbnailDimensionsUserComment
current00:00, 8 June 2021Thumbnail for version as of 00:00, 8 June 20211,159 × 1,704, 4 pages (296 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=Arthur Winter |Assignee=Arthur Winter |Country=US |ApplicationNum=54978 |ApplicationDate=1935-12-18 |PatentNum=2078433 |PatentDate=1937-04-27 |PriorityDate=1935-12-18 |Titolo=Lead feeding pencil |Marca=Dictator |Descrizione=Mati...

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