File:Patent-US-1419026.pdf
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Original file (1,159 × 1,704 pixels, file size: 133 KB, MIME type: application/pdf, 3 pages)
Dettagli
| Inventor |
Arthur O. Dahlberg |
|---|---|
| Assignee |
Arthur O. Dahlberg |
| Country |
US |
| Application N° |
482957 |
| Application Date |
1921-07-07 |
| Patent N° |
1419026 |
| Brevettato |
1922-06-06 |
| Priorità |
1921-07-07 |
| Brand | |
| Title |
Fountain pen |
| Description |
Sistema di caricamento |
Riferimenti esterni
Informazioni
Brevetto per un sistema di caricamento a depressione ottenuta pompando tramite un fondello mobile. Nessuna applicazione nota. Attribuito in forma dubitativa alla Parker per cui l'inventore ha lavorato ed ha assegnato direttamente vari brevetti.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 01:45, 4 July 2012 |  | 1,159 × 1,704, 3 pages (133 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Arthur O. Dahlberg |Assignee=Arthur O. Dahlberg |Country=US |ApplicationNum=482957 |ApplicationDate=1921-07-07 |PatentNum=1419026 |PatentDate=1922-06-06 |PriorityDate=1921-07-07 |Titolo=Fountain pen |Marca=Unbranded |Descrizione=... |
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