Piccardi
{{PatentInfo |Inventor=Russel B. Kingman |Assignee=Russel B. Kingman |Country=US |ApplicationNum=723345 |ApplicationDate=1934-05-01 |PatentNum=1978676 |PatentDate=1934-10-30 |PriorityDate=1934-05-01 |Titolo=Soluble ink fountain pen |Marca=Camel |Desc...