Piccardi
{{PatentInfo |Inventor=William F. Heising |Assignee=W. A. Sheaffer Pen Company |Country=US |ApplicationNum=41565 |ApplicationDate=1935-09-21 |PatentNum=2107150 |PatentDate=1938-02-01 |PriorityDate=1935-09-21 |Titolo=Fountain pen |Marca=Sheaffer |Descri...