File:Patent-CA-225369.pdf
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Dettagli
Inventor |
Donald Ladd |
---|---|
Assignee |
The Dictator Fountain Pen Company Inc. |
Country |
CA |
Application N° |
225369 |
Application Date |
1921-12-15 |
Patent N° |
225369 |
Brevettato |
1922-10-31 |
Priorità |
1921-04-23 |
Brand | |
Title |
Pencil |
Description |
Matita meccanica |
Riferimenti esterni
Informazioni
Brevetto per una matita meccanica. Priorità dal brevetto americano. Stessa invenzione di nº CH-102306. Stessa invenzione di nº FR-549123. Stessa invenzione di nº AT-94205. Stessa invenzione di nº GB-179145. Stessa invenzione di nº DE-369345.
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current | 00:53, 16 June 2021 | ![]() | 1,239 × 1,754, 20 pages (1.22 MB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Donald Ladd |Assignee=The Dictator Fountain Pen Company Inc. |Country=CA |ApplicationNum=225369 |ApplicationDate=1921-12-15 |PatentNum=225369 |PatentDate=1922-10-31 |PriorityDate=1921-04-23 |Titolo=Pencil |Marca=Dictator |Descriz... |
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