File:Patent-US-1488385.pdf
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Dettagli
| Inventor |
William P. De Witt |
|---|---|
| Assignee |
De Witt-La France Company |
| Country |
US |
| Application N° |
503149 |
| Application Date |
1921-09-26 |
| Patent N° |
1488385 |
| Brevettato |
1924-03-25 |
| Priorità |
1921-09-26 |
| Brand | |
| Title |
Pencil with floating clutch |
| Description |
Matita meccanica |
Riferimenti esterni
Informazioni
Brevetto per una matita meccanica.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:05, 25 June 2012 |  | 1,159 × 1,704, 5 pages (260 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=William P. De Witt |Assignee=De Witt-La France Company |Country=US |ApplicationNum=503149 |ApplicationDate=1921-09-26 |PatentNum=1488385 |PatentDate=1924-03-25 |PriorityDate=1921-09-26 |Titolo=Pencil with floating clutch |Marca=D... |
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