Piccardi
{{PatentInfo |Inventor=Gabriel Larsen |Assignee=L. E. Waterman Company |Country=US |ApplicationNum=450681 |ApplicationDate=1930-05-30 |PatentNum=1923269 |PatentDate=1933-08-22 |PriorityDate=1930-05-30 |Titolo=Fastening clip for fountain pens, pencils, ...