Piccardi
{{PatentInfo |Inventor=William R. Cuthbert, William H. Lindemon |Assignee=Pen Desk Set Company |Country=US |ApplicationNum=306806 |ApplicationDate=1928-09-19 |PatentNum=1783630 |PatentDate=1931-02-24 |PriorityDate=1928-09-19 |Titolo=Holding means for d...