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{{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...
{{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=Pilot
|Descrizione=Caricamento a [[siringa rovesciata]]
}}
==Informazioni==
Brevetto per un caricamento a [[siringa rovesciata]].
|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=Pilot
|Descrizione=Caricamento a [[siringa rovesciata]]
}}
==Informazioni==
Brevetto per un caricamento a [[siringa rovesciata]].