File:Patent-US-1892145.pdf
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Dettagli
| Inventor |
Walter E. Guyot |
|---|---|
| Assignee |
The Parker Pen Company |
| Country |
US |
| Application N° |
464692 |
| Application Date |
1930-06-28 |
| Patent N° |
1892145 |
| Brevettato |
1932-12-27 |
| Priorità |
1930-06-28 |
| Brand | |
| Title |
Mechanical pencil |
| Description |
Matita meccanica |
Riferimenti esterni
Informazioni
Brevetto per una matita meccanica. Riferimenti a nº US-1632371.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:08, 5 August 2012 |  | 1,159 × 1,704, 14 pages (826 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Walter E. Guyot |Assignee=The Parker Pen Company |Country=US |ApplicationNum=464692 |ApplicationDate=1930-06-28 |PatentNum=1892145 |PatentDate=1932-12-27 |PriorityDate=1930-06-28 |Titolo=Mechanical pencil |Marca=Parker |Descrizio... |
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