File:Patent-US-2072711.pdf

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Original file(1,159 × 1,704 pixels, file size: 226 KB, MIME type: application/pdf, 4 pages)
Inventor

William R. Cuthbert, William H. Lindemon

Assignee

W. A. Sheaffer Pen Company

Country

US

Application N°

38672

Application Date

1935-08-31

Patent N°

2072711

Brevettato

1937-03-02

Priorità

1935-08-31

Brand

Sheaffer

Title

Mechanical pencil

Description

Matita meccanica

Riferimenti esterni

Informazioni

Brevetto per una matita meccanica.

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current22:26, 14 July 2012Thumbnail for version as of 22:26, 14 July 20121,159 × 1,704, 4 pages (226 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=William R. Cuthbert, William H. Lindemon |Assignee=W. A. Sheaffer Pen Company |Country=US |ApplicationNum=38672 |ApplicationDate=1935-08-31 |PatentNum=2072711 |PatentDate=1937-03-02 |PriorityDate=1935-08-31 |Titolo=Mechanical pen...
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关于“Patent-US-2072711.pdf”的事实
Application date1935年8月31日 (六) +
Application number38672 +
Assigned toW. A. Sheaffer Pen Company +
Invented byWilliam R. Cuthbert +和William H. Lindemon +
Patent date1937年3月2日 (二) +
Patent descriptionMatita meccanica +
Patent number2072711 +
Patent titleMechanical pencil +
Patented byW. A. Sheaffer Pen Company +
Patented inUS +
Priority date1935年8月31日 (六) +