File:Patent-US-1900669.pdf
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Dettagli
| Inventor |
Craig R. Sheaffer, William R. Cuthbert |
|---|---|
| Assignee |
W. A. Sheaffer Pen Company |
| Country |
US |
| Application N° |
351502 |
| Application Date |
1929-04-01 |
| Patent N° |
1900669 |
| Brevettato |
1933-03-07 |
| Priorità |
1929-04-01 |
| Brand | |
| Title |
Pencil |
| Description |
Matita meccanica |
Riferimenti esterni
Informazioni
Brevetto per una matita meccanica. Riferimento a nº US-1653151.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:19, 14 July 2012 |  | 1,159 × 1,704, 4 pages (234 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Craig R. Sheaffer, William R. Cuthbert |Assignee=W. A. Sheaffer Pen Company |Country=US |ApplicationNum=351502 |ApplicationDate=1929-04-01 |PatentNum=1900669 |PatentDate=1933-03-07 |PriorityDate=1929-04-01 |Titolo=Pencil |Marca=S... |
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