Piccardi
{{PatentInfo |Inventor=Russel B. Kingman |Assignee=Russel B. Kingman |Country=US |ApplicationNum=675726 |ApplicationDate=1933-06-14 |PatentNum=1964821 |PatentDate=1934-07-03 |PriorityDate=1933-06-14 |Titolo=Soluble ink fountain pen |Marca=Camel |Desc...