Piccardi
{{PatentInfo |Inventor=Daniel A. O'Neill |Assignee=Daniel A. O'Neill |Country=US |ApplicationNum=8639 |ApplicationDate=1925-02-12 |PatentNum=1554517 |PatentDate=1925-09-22 |PriorityDate=1925-02-12 |Titolo=Combined pen or pencil clip and envelope opener...