File:Patent-US-2177466.pdf

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Original file(1,159 × 1,704 pixels, file size: 176 KB, MIME type: application/pdf, 4 pages)
Inventor

Herman K. Stempel

Assignee

W. A. Sheaffer Pen Company

Country

US

Application N°

239987

Application Date

1938-11-12

Patent N°

2177466

Brevettato

1939-10-24

Priorità

1938-11-12

Brand

Sheaffer

Title

Pencil eraser

Description

Gomma matita meccanica

Riferimenti esterni

Informazioni

Brevetto per il montaggio della gomma da cancellare su una matita meccanica.

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current00:31, 15 July 2012Thumbnail for version as of 00:31, 15 July 20121,159 × 1,704, 4 pages (176 KB)Piccardi (talk | contribs){{PatentInfo |Inventor=Herman K. Stempel |Assignee=W. A. Sheaffer Pen Company |Country=US |ApplicationNum=239987 |ApplicationDate=1938-11-12 |PatentNum=2177466 |PatentDate=1939-10-24 |PriorityDate=1938-11-12 |Titolo=Pencil eraser |Marca=Sheaffer |Descr...
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Fatti riguardanti Patent-US-2177466.pdf
Application datenovembre 12, 1938 +
Application number239987 +
Assigned toW. A. Sheaffer Pen Company +
Invented byHerman K. Stempel +
Patent dateottobre 24, 1939 +
Patent descriptionGomma matita meccanica +
Patent number2177466 +
Patent titlePencil eraser +
Patented byW. A. Sheaffer Pen Company +
Patented inUS +
Priority datenovembre 12, 1938 +