Piccardi
{{PatentInfo |Inventor=John A. Holland |Assignee=The John Holland Gold Pen Co. |Country=US |ApplicationNum=368263 |ApplicationDate=1907-04-15 |PatentNum=863029 |PatentDate=1907-08-13 |PriorityDate=1907-04-15 |Titolo=Clip for pen-caps |Marca=Holland |De...