Piccardi
{{PatentInfo |Inventor=Edwin F. Britten |Assignee=L. E. Waterman Company |Country=US |ApplicationNum=15422 |ApplicationDate=1915-03-19 |PatentNum=1156748 |PatentDate=1915-10-12 |PriorityDate=1915-03-19 |Titolo=Spring and presser-bar for fountain-pens |...