File:Patent-US-2293623.pdf

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Original file(1,159 × 1,704 pixels, file size: 265 KB, MIME type: application/pdf, 5 pages)
Inventor

John William Para

Assignee

David Kahn Inc

Country

US

Application N°

361953

Application Date

1940-10-19

Patent N°

2293623

Brevettato

1942-08-18

Priorità

1940-10-19

Brand

Wearever

Title

Mechanical pencil

Description

Matita meccanica

Riferimenti esterni

Informazioni

Brevetto per una matita meccanica. Riferimenti a n° US-2293622 e n° US-2293621.

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current23:20, 9 August 2013Thumbnail for version as of 23:20, 9 August 20131,159 × 1,704, 5 pages (265 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=John William Para |Assignee=David Kahn Inc |Country=US |ApplicationNum=361953 |ApplicationDate=1940-10-19 |PatentNum=2293623 |PatentDate=1942-08-18 |PriorityDate=1940-10-19 |Titolo=Mechanical pencil |Marca=Wearever |Descrizione=M...
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Metadata

Fatti riguardanti Patent-US-2293623.pdf
Application dateottobre 19, 1940 +
Application number361953 +
Assigned toDavid Kahn Inc +
Invented byJohn William Para +
Mention patentFile:Patent-US-2293622.pdf + e File:Patent-US-2293621.pdf +
Patent dateagosto 18, 1942 +
Patent descriptionMatita meccanica +
Patent number2293623 +
Patent titleMechanical pencil +
Patented byWearever +
Patented inUS +
Priority dateottobre 19, 1940 +