File:Patent-US-940247.pdf
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Original file (1,159 × 1,704 pixels, file size: 224 KB, MIME type: application/pdf, 5 pages)
| Inventor |
John C. Haring |
|---|---|
| Assignee |
Edward Todd & Co. |
| Country |
US |
| Application N° |
448890 |
| Application Date |
1908-08-17 |
| Patent N° |
940247 |
| Brevettato |
1909-11-16 |
| Priorità |
1908-08-17 |
| Brand | |
| Title |
Polypoint pencil |
| Description |
Matita meccanica |
Riferimenti esterni
Informazioni
Brevetto per la modalità di costruzione di una matita meccanica a mine multiple.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:17, 27 December 2012 |  | 1,159 × 1,704, 5 pages (224 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=John C. Haring |Assignee=Edward Todd & Co. |Country=US |ApplicationNum=448890 |ApplicationDate=1908-08-17 |PatentNum=940247 |PatentDate=1909-11-16 |PriorityDate=1908-08-17 |Titolo=Polypoint pencil |Marca=Swan |Descrizione=Matita ... |
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