Piccardi
{{PatentInfo |Inventor=Russel B. Kingman |Assignee=Russel B. Kingman |Country=US |ApplicationNum=679507 |ApplicationDate=1933-07-08 |PatentNum=1947092 |PatentDate=1934-02-13 |PriorityDate=1933-07-08 |Titolo=Soluble ink fountain pen |Marca=Camel |Desc...