Piccardi
{{PatentInfo |Inventor=Harry E. Waldron |Assignee=W. A. Sheaffer Pen Company |Country=US |ApplicationNum=556133 |ApplicationDate=1931-08-10 |PatentNum=1869950 |PatentDate=1932-08-02 |PriorityDate=1931-08-10 |Titolo=Pen |Marca=Sheaffer |Descrizione=Penn...