File:Patent-US-2232231.pdf
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Original file (1,159 × 1,704 pixels, file size: 169 KB, MIME type: application/pdf, 3 pages)
Dettagli
| Inventor |
O'Cal Hanson |
|---|---|
| Assignee |
W. A. Sheaffer Pen Company |
| Country |
US |
| Application N° |
316506 |
| Application Date |
1940-01-31 |
| Patent N° |
2232231 |
| Brevettato |
1941-02-18 |
| Priorità |
1940-01-31 |
| Brand | |
| Title |
Tip for a marking instrument |
| Description |
Puntale matita meccanica |
Riferimenti esterni
Informazioni
Brevetto per il puntale di una matita meccanica.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 00:09, 15 July 2012 |  | 1,159 × 1,704, 3 pages (169 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=O'cal Hanson |Assignee=W. A. Sheaffer Pen Company |Country=US |ApplicationNum=316506 |ApplicationDate=1940-01-31 |PatentNum=2232231 |PatentDate=1941-02-18 |PriorityDate=1940-01-31 |Titolo=Tip for a marking instrument |Marca=Shea... |
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