Piccardi
{{PatentInfo |Inventor=William J. Gillet, Victor C. Sharp |Assignee=W. A. Sheaffer Pen Company |Country=US |ApplicationNum=306264 |ApplicationDate=1939-11-27 |PatentNum=2241850 |PatentDate=1941-05-13 |PriorityDate=1939-11-27 |Titolo=Pressure bar for fo...