File:Patent-US-2452504.pdf
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Dettagli
| Inventor |
Ivan D. Tefft |
|---|---|
| Assignee |
The Parker Pen Company |
| Country |
US |
| Application N° |
607380 |
| Application Date |
1945-07-27 |
| Patent N° |
2452504 |
| Brevettato |
1948-10-26 |
| Priorità |
1945-07-27 |
| Brand | |
| Title |
Writing instrument |
| Description |
Penna a sfera |
Riferimenti esterni
Informazioni
Brevetto per una penna a sfera. Riferimenti a nº US-538492, nº US-554189, nº US-600299, nº US-748383, nº US-987169, nº US-1179086, nº US-1373146, nº US-1808377, nº US-1935000, nº US-2106046, nº US-2107424, nº US-2390636 e nº US-2416896, ed inoltre nº DE-491057.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:00, 6 August 2012 |  | 1,159 × 1,704, 5 pages (280 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Ivan D. Tefft |Assignee=The Parker Pen Company |Country=US |ApplicationNum=607380 |ApplicationDate=1945-07-27 |PatentNum=2452504 |PatentDate=1948-10-26 |PriorityDate=1945-07-27 |Titolo=Writing instrument |Marca=Parker |Descrizion... |
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