File:Patent-US-1905920.pdf

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Original file(1,159 × 1,704 pixels, file size: 193 KB, MIME type: application/pdf, 4 pages)
Inventor

William H. Lindemon

Assignee

W. A. Sheaffer Pen Company

Country

US

Application N°

515898

Application Date

1931-02-24

Patent N°

1905920

Brevettato

1933-04-25

Priorità

1931-02-24

Brand

Sheaffer

Title

Mechanical pencil

Description

Matita per combo

Riferimenti esterni

Informazioni

Brevetto per una matita meccanica corta per l'uso in una penna combinata matita/stilografica.

File history

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current19:34, 14 July 2012Thumbnail for version as of 19:34, 14 July 20121,159 × 1,704, 4 pages (193 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=William H. Lindemon |Assignee=W. A. Sheaffer Pen Company |Country=US |ApplicationNum=515898 |ApplicationDate=1931-02-24 |PatentNum=1905920 |PatentDate=1933-04-25 |PriorityDate=1931-02-24 |Titolo=Mechanical pencil |Marca=Sheaffer ...
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Fatti riguardanti Patent-US-1905920.pdf
Application datefebbraio 24, 1931 +
Application number515898 +
Assigned toW. A. Sheaffer Pen Company +
Invented byWilliam H. Lindemon +
Patent dateaprile 25, 1933 +
Patent descriptionMatita per combo +
Patent number1905920 +
Patent titleMechanical pencil +
Patented byW. A. Sheaffer Pen Company +
Patented inUS +
Priority datefebbraio 24, 1931 +