Piccardi
{{PatentInfo |Inventor= Walter A. Sheaffer, Craig R. Sheaffer |Assignee=Walter A. Sheaffer and Craig R. Sheaffer |Country=US |ApplicationNum=13794 |ApplicationDate=1925-06-25 |PatentNum=D070959 |PatentDate=1928-01-10 |PriorityDate=1925-06-25 |Titolo=De...