Piccardi
{{PatentInfo |Inventor=William I. Ferris |Assignee=L. E. Waterman Company |Country=US |ApplicationNum=401410 |ApplicationDate=1929-10-22 |PatentNum=1808779 |PatentDate=1931-06-09 |PriorityDate=1929-10-22 |Titolo=Fastening clip and means for attaching t...