Piccardi
{{PatentInfo |Inventor=Walter A. Sheaffer |Assignee=Walter A. Sheaffer |Country=US |ApplicationNum=685254 |ApplicationDate=1912-03-21 |PatentNum=1064098 |PatentDate=1913-06-10 |PriorityDate=1912-03-21 |Titolo=Fountain-pen retainer |Marca=Sheaffer |Desc...