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)
Dettagli
| 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 | |
| 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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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 00:31, 15 July 2012 |  | 1,159 × 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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