File:Patent-US-1918239.pdf
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Original file (1,159 × 1,704 pixels, file size: 263 KB, MIME type: application/pdf, 5 pages)
Dettagli
| Inventor |
Leon H. Ashmore |
|---|---|
| Assignee |
The Esterbrook Steel Pen Manfacturing Co. |
| Country |
US |
| Application N° |
228943 |
| Application Date |
1931-12-24 |
| Patent N° |
1918239 |
| Brevettato |
1933-07-18 |
| Priorità |
1931-12-24 |
| Brand | |
| Title |
Fountain pen |
| Description |
Pennino intercambiabile |
Riferimenti esterni
Informazioni
Brevetto per un pennino intercambiabile.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:39, 30 June 2012 |  | 1,159 × 1,704, 5 pages (263 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Leon H. Ashmore |Assignee=The Esterbrook Steel Pen Manfacturing Co. |Country=US |ApplicationNum=228943 |ApplicationDate=1931-12-24 |PatentNum=1918239 |PatentDate=1933-07-18 |PriorityDate=1931-12-24 |Titolo=Fountain pen |Marca=Est... |
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