File:Patent-US-2397229.pdf
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Original file (1,159 × 1,704 pixels, file size: 381 KB, MIME type: application/pdf, 6 pages)
Dettagli
| Inventor |
Jozsef Laszlo Biro |
|---|---|
| Assignee |
Eterpen S. A. |
| Country |
US |
| Application N° |
650140 |
| Application Date |
1943-06-17 |
| Patent N° |
2397229 |
| Brevettato |
1946-03-26 |
| Priorità |
1943-05-19 |
| Brand | |
| Title |
Writing instrument |
| Description |
Penna a sfera |
Riferimenti esterni
Informazioni
Brevetto per la penna a sfera, la prima versione di Lazlo Biro.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:46, 7 July 2012 |  | 1,159 × 1,704, 6 pages (381 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Jozsef Laszlo Biro |Assignee=Eterpen S. A. |Country=US |ApplicationNum=650140 |ApplicationDate=1943-06-17 |PatentNum=2397229 |PatentDate=1946-03-26 |PriorityDate=1943-05-19 |Titolo=Writing instrument |Marca=Eterpen |Descrizione=I... |
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