File:Patent-US-2070461.pdf
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Dettagli
Inventor |
Asahi Watanabe |
---|---|
Assignee |
The Namiki Manufacturing Company Ltd |
Country |
US |
Application N° |
31566 |
Application Date |
1935-07-16 |
Patent N° |
2070461 |
Brevettato |
1937-02-09 |
Priorità |
1935-07-16 |
Brand | |
Title |
Piston fountain pen |
Description |
Caricamento a siringa rovesciata |
Riferimenti esterni
Informazioni
Brevetto per un caricamento a siringa rovesciata.
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current | 01:27, 19 October 2019 | ![]() | 1,159 × 1,704, 3 pages (133 KB) | Piccardi (talk | contribs) | {{PatentInfo |Inventor=Asahi Watanabe |Assignee=The Namiki Manufacturing Company Ltd |Country=US |ApplicationNum=31566 |ApplicationDate=1935-07-16 |PatentNum=2070461 |PatentDate=1937-02-09 |PriorityDate=1935-07-16 |Titolo=Piston fountain pen |Marca=Pil... |
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