File:Patent-GB-179145.pdf
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Dettagli
| Inventor |
Donald Ladd |
|---|---|
| Assignee |
The Dictator Fountain Pen Company Inc. |
| Country |
GB |
| Application N° |
8040/22 |
| Application Date |
1922-03-20 |
| Patent N° |
179145 |
| Brevettato |
1923-03-22 |
| Priorità |
1921-04-23 |
| Brand | |
| Title |
Improvements in pencils |
| 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 DE-369345. Stessa invenzione di nº CA-225369.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 01:59, 15 June 2021 |  | 1,296 × 1,754, 8 pages (623 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Donald Ladd |Assignee=The Dictator Fountain Pen Company Inc. |Country=GB |ApplicationNum=8040/22 |ApplicationDate=1922-03-20 |PatentNum=179145 |PatentDate=1923-03-22 |PriorityDate=1921-04-23 |Titolo=Improvements in pencils |Marca... |
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