Piccardi
{{PatentInfo |Inventor=Ryosuke Namiki |Assignee=Ryosuke Namiki |Country=US |ApplicationNum=162018 |ApplicationDate=1937-09-01 |PatentNum=2132313 |PatentDate=1938-10-04 |PriorityDate=1937-09-01 |Titolo=Closure of ink bottles |Marca=Pilot |Descrizione=Bo...