File:Patent-GB-638420.pdf
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Dettagli
| Inventor |
Assegnatario |
|---|---|
| Assignee |
Etablissement Stylomine |
| Country |
GB |
| Application N° |
9323/47 |
| Application Date |
1947-04-08 |
| Patent N° |
638420 |
| Brevettato |
1950-06-07 |
| Priorità |
1946-04-11 |
| Brand | |
| Title |
Improvements in or relating to multiple lead pencils |
| Description |
Matita meccanica |
Riferimenti esterni
Informazioni
Brevetto per una matita meccanica multipla. Priorità dal brevetto francese. Stessa invenzione di nº FR-926468. Stessa invenzione di nº US-2517522. Stessa invenzione di nº CH-259468. Stessa invenzione di nº BE-472348.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 02:02, 10 December 2013 |  | 1,295 × 1,752, 3 pages (241 KB) | Piccardi (talk | contribs) | {{PatentInfo |Assignee=Etablissement Stylomine |Country=GB |ApplicationNum=9323/47 |ApplicationDate=1947-04-08 |PatentNum=638420 |PatentDate=1950-06-07 |PriorityDate=1946-04-11 |Titolo=Improvements in or relating to multiple lead pencils |Marca=Stylomi... |
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