Piccardi
{{PatentInfo |Inventor=Walter A. Sheaffer |Assignee=W. A. Sheaffer Pen Company |Country=US |ApplicationNum=377407 |ApplicationDate=1941-02-05 |PatentNum=2314562 |PatentDate=1943-03-23 |PriorityDate=1941-02-05 |Titolo=Pour-out closure |Marca=Sheaffer |D...