Piccardi
{{PatentInfo |Inventor=Farnham F. Boyle, William H. Lindemon |Assignee=W. A. Sheaffer Pen Company |Country=US |ApplicationNum=380612 |ApplicationDate=1939-12-22 |PatentNum=2241852 |PatentDate=1942-02-24 |PriorityDate=1941-02-26 |Titolo=Fountain pen |Ma...