File:Patent-US-292313.pdf
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Dettagli
| Inventor |
John A. Holland |
|---|---|
| Assignee |
John A. Holland |
| Country |
US |
| Application N° |
292313 |
| Application Date |
1882-03-18 |
| Patent N° |
292313 |
| Brevettato |
1884-01-22 |
| Priorità |
1882-03-18 |
| Brand | |
| Title |
Lead-holder for pencils |
| Description |
Meccanismo portamine |
Riferimenti esterni
Informazioni
Brevetto per la costruzione di un meccanismo di portamine.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:42, 15 October 2012 |  | 1,159 × 1,704, 2 pages (83 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=John A. Holland |Assignee=John A. Holland |Country=US |ApplicationNum=292313 |ApplicationDate=1882-03-18 |PatentNum=292313 |PatentDate=1884-01-22 |PriorityDate=1882-03-18 |Titolo=Lead-holder for pencils |Marca=Holland |Descrizion... |
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