Piccardi
{{PatentInfo |Inventor=Julius M. Kahn, Morris Levy |Assignee=David Kahn Inc. |Country=US |ApplicationNum=576357 |ApplicationDate=1956-04-05 |PatentNum=2964012 |PatentDate=1960-12-13 |PriorityDate=1956-04-05 |Titolo=Writing instrument |Marca=Wearever |...