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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current | 02:10, 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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Fatti riguardanti Patent-US-1893130.pdf
Application date | dicembre 9, 1931 + |
Application number | 579966 + |
Assigned to | Mirko Chelazzi, Dino Frulli + |
Invented by | Mirko Chelazzi + e Dino Frulli + |
Patent date | gennaio 3, 1933 + |
Patent description | Penna doppia + |
Patent number | 1893130 + |
Patent title | Fountain pen + |
Patented by | Zerollo + |
Patented in | US + |
Priority date | dicembre 9, 1930 + |
Same invention of | ![]() ![]() |