Piccardi
{{PatentInfo |Inventor=Derrick John Silver |Assignee=Mentmore Manufacturing Company Limited |Country=US |ApplicationNum=808151 |ApplicationDate=1959-04-22 |PatentNum=2983254 |PatentDate=1961-05-09 |PriorityDate=1958-04-23 |Titolo=Fountain pens |Marca=M...