Piccardi
{{PatentInfo |Inventor=Jozsef Laszlo Biro |Assignee=Eterpen S. A. |Country=US |ApplicationNum=536011 |ApplicationDate=1944-05-17 |PatentNum=2397229 |PatentDate=1946-05-21 |PriorityDate=1944-05-17 |Titolo=Fountain pen |Marca=Eterpen |Descrizione=Penna a...