File:Patent-US-1423603.pdf
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Dettagli
| Inventor |
David J. La France, William P. De Witt |
|---|---|
| Assignee |
De Witt - La France Co. |
| Country |
US |
| Application N° |
327839 |
| Application Date |
1919-10-02 |
| Patent N° |
1423603 |
| Brevettato |
1922-07-25 |
| Priorità |
1919-10-02 |
| 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 | 22:35, 25 June 2012 |  | 1,159 × 1,704, 4 pages (242 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=David J. La France, William P. De Witt |Assignee=De Witt - La France Co. |Country=US |ApplicationNum=327839 |ApplicationDate=1919-10-02 |PatentNum=1423603 |PatentDate=1922-07-25 |PriorityDate=1919-10-02 |Titolo=Pencil |Marca=De W... |
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