File:Patent-US-2526268.pdf
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Dettagli
Inventor |
Roger François Perraud |
---|---|
Assignee |
A. J. Fagard & C.ie |
Country |
US |
Application N° |
758738 |
Application Date |
1947-07-03 |
Patent N° |
2526268 |
Brevettato |
1950-10-17 |
Priorità |
1946-04-15 |
Brand | |
Title |
Push button type mechanical pencil |
Description |
Matita meccanica |
Riferimenti esterni
Informazioni
Brevetto per una matita meccanica. Priorità dal brevetto francese. Stessa invenzione di nº FR-1001319. Stessa invenzione di nº GB-623792. Stessa invenzione di nº CH-259145. Stessa invenzione di nº BE-472541.
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current | 18:13, 28 November 2013 | ![]() | 1,159 × 1,704, 3 pages (139 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Roger François Perraud |Assignee=A. J. Fagard & C.ie |Country=US |ApplicationNum=758738 |ApplicationDate=1947-07-03 |PatentNum=2526268 |PatentDate=1950-10-17 |PriorityDate=1946-04-15 |Titolo=Push button type mechanical pencil |M... |
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