Piccardi
{{PatentInfo |Inventor=Alberto Del Piero |Assignee=Alberto Del Piero |Country=GB |ApplicationNum=17779/52 |ApplicationDate=1952-07-14 |PatentNum=738754 |PatentDate=1955-10-19 |PriorityDate=1951-07-13 |Titolo=Improvements in fountain pens |Marca=Unbran...