File:Patent-US-2186870.pdf

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Original file(1,159 × 1,704 pixels, file size: 308 KB, MIME type: application/pdf, 5 pages)
Inventor

David Kahn

Assignee

David Kahn Inc

Country

US

Application N°

231584

Application Date

1938-09-24

Patent N°

2186870

Brevettato

1940-01-09

Priorità

1938-09-24

Brand

Wearever

Title

Mechanical pencil

Description

Matita meccanica

Riferimenti esterni

Informazioni

Brevetto per una matita meccanica. Riferimenti a richiesta n° 733524 del 1934-07-02.

File history

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current22:45, 9 August 2013Thumbnail for version as of 22:45, 9 August 20131,159 × 1,704, 5 pages (308 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=David Kahn |Assignee=David Kahn Inc |Country=US |ApplicationNum=231584 |ApplicationDate=1938-09-24 |PatentNum=2186870 |PatentDate=1940-01-09 |PriorityDate=1938-09-24 |Titolo=Mechanical pencil |Marca=Wearever |Descrizione=Matita m...
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Metadata

Fatti riguardanti Patent-US-2186870.pdf
Application datesettembre 24, 1938 +
Application number231584 +
Assigned toDavid Kahn Inc +
Invented byDavid Kahn +
Patent dategennaio 9, 1940 +
Patent descriptionMatita meccanica +
Patent number2186870 +
Patent titleMechanical pencil +
Patented byWearever +
Patented inUS +
Priority datesettembre 24, 1938 +