File:Patent-US-2176661.pdf
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Original file (1,159 × 1,704 pixels, file size: 231 KB, MIME type: application/pdf, 4 pages)
Dettagli
| Inventor |
Leon H. Ashmore |
|---|---|
| Assignee |
The Esterbrook Steel Pen Manfacturing Co. |
| Country |
US |
| Application N° |
249236 |
| Application Date |
1939-01-04 |
| Patent N° |
2176661 |
| Brevettato |
1939-10-17 |
| Priorità |
1939-01-04 |
| Brand | |
| Title |
Fountain pen |
| Description |
Dispositivo anti-bolle |
Riferimenti esterni
Informazioni
Brevetto di un dispositivo inserito internamente alla sezione volto ad evitare la formazione di bolle nel contatto fra la parte posteriore dell'alimentatore e l'inchiostro. Riferimenti a nº US-2152436.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:04, 30 June 2012 |  | 1,159 × 1,704, 4 pages (231 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Leon H. Ashmore |Assignee=The Esterbrook Steel Pen Manfacturing Co. |Country=US |ApplicationNum=249236 |ApplicationDate=1939-01-04 |PatentNum=2176661 |PatentDate=1939-10-17 |PriorityDate=1939-01-04 |Titolo=Fountain pen |Marca=Est... |
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