Piccardi
{{PatentInfo |Inventor=Paul E. Wirt |Assignee=Paul E. Wirt |Country=US |ApplicationNum=325485 |ApplicationDate=1906-07-10 |PatentNum=852369 |PatentDate=1907-04-30 |PriorityDate=1906-07-10 |Titolo=Press-bar-locking device |Marca=Wirt |Descrizione=Sistem...