File:Patent-US-2129655.pdf
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Dettagli
| Inventor |
William P. De Witt |
|---|---|
| Assignee |
William P. De Witt |
| Country |
US |
| Application N° |
13455 |
| Application Date |
1935-03-28 |
| Patent N° |
2129655 |
| Brevettato |
1938-09-13 |
| Priorità |
1935-03-28 |
| Brand | |
| Title |
Pencil |
| Description |
Matita meccanica |
Riferimenti esterni
Informazioni
Brevetto per una matita meccanica.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:26, 25 June 2012 |  | 1,159 × 1,704, 5 pages (326 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=William P. De Witt |Assignee=William P. De Witt |Country=US |ApplicationNum=13455 |ApplicationDate=1935-03-28 |PatentNum=2129655 |PatentDate=1938-09-13 |PriorityDate=1935-03-28 |Titolo=Pencil |Marca=De Witt-La France |Descrizione... |
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