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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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| 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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