File:Patent-US-2481874.pdf
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Dettagli
| Inventor |
Robert W. Randolph |
|---|---|
| Assignee |
The Parker Pen Company |
| Country |
US |
| Application N° |
620442 |
| Application Date |
1945-10-05 |
| Patent N° |
2481874 |
| Brevettato |
1949-09-13 |
| Priorità |
1945-10-05 |
| Brand | |
| Title |
Ball-point writing instrument |
| Description |
Penna a sfera |
Riferimenti esterni
Informazioni
Brevetto per una penna a sfera. Riferimenti a nº US-378897, nº US-1947282, nº US-2367892 e nº US-2398548, ed inoltre nº DE-210230 e nº GB-537039.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:10, 6 August 2012 |  | 1,159 × 1,704, 5 pages (345 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Robert W. Randolph |Assignee=The Parker Pen Company |Country=US |ApplicationNum=620442 |ApplicationDate=1945-10-05 |PatentNum=2481874 |PatentDate=1949-09-13 |PriorityDate=1945-10-05 |Titolo=Ball-point writing instrument |Marca=Pa... |
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