File:Patent-US-1893130.pdf
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| Inventor |
Mirko Chelazzi, Dino Frulli |
|---|---|
| Assignee |
Mirko Chelazzi, Dino Frulli |
| Country |
US |
| Application N° |
579966 |
| Application Date |
1931-12-09 |
| Patent N° |
1893130 |
| Brevettato |
1933-01-03 |
| Priorità |
1930-12-09 |
| Brand | |
| Title |
Fountain pen |
| Description |
Penna doppia |
Riferimenti esterni
Informazioni
Brevetto per la penna doppia Zerollo. Priorità da brevetto italiano. Stessa invenzione di nº FR-728038. Stessa invenzione di nº GB-397736.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 03:10, 29 July 2012 |  | 1,159 × 1,704, 8 pages (435 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Mirko Chelazzi, Dino Frulli |Assignee=Mirko Chelazzi, Dino Frulli |Country=US |ApplicationNum=579966 |ApplicationDate=1931-12-09 |PatentNum=1790037 |PatentDate=1933-01-03 |PriorityDate=1930-12-09 |Titolo=Fountain pen |Marca=Z... |
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Facts about "Patent-US-1893130.pdf"
| Application date | December 9, 1931 + |
| Application number | 579966 + |
| Assigned to | Mirko Chelazzi, Dino Frulli + |
| Invented by | Mirko Chelazzi + and Dino Frulli + |
| Patent date | January 3, 1933 + |
| Patent description | Penna doppia + |
| Patent number | 1893130 + |
| Patent title | Fountain pen + |
| Patented by | Zerollo + |
| Patented in | US + |
| Priority date | December 9, 1930 + |
| Same invention of |  + and  + |
