Piccardi
{{PatentInfo |Inventor=William I. Ferris, Edwin F. Britten |Assignee=L. E. Waterman Company |Country=US |ApplicationNum=857099 |ApplicationDate=1914-08-17 |PatentNum=1197360 |PatentDate=1916-09-05 |PriorityDate=1914-08-17 |Titolo=Presser-bar-actuating ...