Piccardi
{{PatentInfo |Inventor=William R. Cuthbert, William H. Lindemon |Assignee=W. A. Sheaffer Pen Company |Country=US |ApplicationNum=38672 |ApplicationDate=1935-08-31 |PatentNum=2072711 |PatentDate=1937-03-02 |PriorityDate=1935-08-31 |Titolo=Mechanical pen...