File:Patent-US-1340277.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° |
244351 |
| Application Date |
1918-07-11 |
| Patent N° |
1340277 |
| Brevettato |
1920-05-18 |
| Priorità |
1918-07-11 |
| Brand | |
| Title |
Fountain-pen |
| Description |
Blocco afflusso inchiostro |
Riferimenti esterni
Informazioni
Brevetto per un dispositivo interno al fusto della penna per bloccare l'afflusso dell'inchiostro all'alimentatore ed evitare perdite.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:58, 25 June 2012 |  | 1,159 × 1,704, 5 pages (340 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=David J. La France, William P. De Witt |Assignee=De Witt - La France Co. |Country=US |ApplicationNum=244351 |ApplicationDate=1918-07-11 |PatentNum=1340277 |PatentDate=1920-05-18 |PriorityDate=1918-07-11 |Titolo=Fountain-pen |Marc... |
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