Piccardi
{{PatentInfo |Inventor=Walter A. Sheaffer, Lucifer J. Most |Assignee=Walter A. Sheaffer |Country=US |ApplicationNum=423518 |ApplicationDate=1920-11-12 |PatentNum=1675826 |PatentDate=1928-07-03 |PriorityDate=1920-11-12 |Titolo=Pencil |Marca=Sheaffer |De...