Piccardi
{{PatentInfo |Inventor=John W. Para, Karl Weisser |Assignee=David Kahn Inc. |Country=US |ApplicationNum=441956 |ApplicationDate=1942-05-06 |PatentNum=2377444 |PatentDate=1944-12-19 |PriorityDate=1942-05-06 |Titolo=Fountain pen presser bar and method of...