File:Patent-US-2503080.pdf
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Dettagli
| Inventor |
Ivan D. Tefft, Marlin S. Baker |
|---|---|
| Assignee |
The Parker Pen Company |
| Country |
US |
| Application N° |
651785 |
| Application Date |
1946-03-04 |
| Patent N° |
2503080 |
| Brevettato |
1950-04-04 |
| Priorità |
1946-03-04 |
| Brand | |
| Title |
Mechanical pencil with push-button type lead feeding means |
| Description |
Matita meccanica |
Riferimenti esterni
Informazioni
Brevetto per una matita meccanica. Riferimenti a nº US-1592502, nº US-1742711, nº US-1759931 e nº US-2358091.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:57, 6 August 2012 |  | 1,159 × 1,704, 6 pages (383 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Ivan D. Tefft, Marlin S. Baker |Assignee=The Parker Pen Company |Country=US |ApplicationNum=651785 |ApplicationDate=1946-03-04 |PatentNum=2503080 |PatentDate=1950-04-04 |PriorityDate=1946-03-04 |Titolo=Mechanical pencil with push... |
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