Piccardi
{{PatentInfo |Inventor=Arthur O. Dahlberg |Assignee=Arthur O. Dahlberg |Country=US |ApplicationNum=417882 |ApplicationDate=1930-01-02 |PatentNum=1882780 |PatentDate=1932-10-10 |PriorityDate=1930-01-02 |Titolo=Fountain pen |Marca=Unbranded |Descrizione=...