File:Patent-US-1507729.pdf
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Dettagli
| Inventor |
Arthur O. Dahlberg |
|---|---|
| Assignee |
Arthur O. Dahlberg |
| Country |
US |
| Application N° |
586279 |
| Application Date |
1922-09-05 |
| Patent N° |
1507729 |
| Brevettato |
1924-09-09 |
| Priorità |
1922-09-05 |
| Brand | |
| Title |
Fountain pen |
| Description |
Sistema di caricamento |
Riferimenti esterni
Informazioni
Brevetto per un precursore del caricamento Vacumatic, acquisito dalla Parker in seguito e considerato per questo la base da cui poi è stata creata la versione definitiva (brevetto nº US-1980508).
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 00:01, 3 July 2012 |  | 1,159 × 1,704, 3 pages (175 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Arthur O. Dahlberg |Assignee=Arthur O. Dahlberg |Country=US |ApplicationNum=586279 |ApplicationDate=1922-09-05 |PatentNum=1507729 |PatentDate=1924-07-16 |PriorityDate=1922-09-05 |Titolo=Fountain pen |Marca=Parker |Descrizione=Pre... |
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