Piccardi
{{PatentInfo |Inventor=John T. Davison |Assignee=John T. Davison |Country=US |ApplicationNum=233436 |ApplicationDate=1904-11-19 |PatentNum=787152 |PatentDate=1905-04-11 |PriorityDate=1904-11-19 |Titolo=Self-filling fountain-pen |Marca=Walker Davison,Pa...