Piccardi
{{PatentInfo |Inventor=Balthasar Götz |Assignee=Balthasar Götz |Country=GB |ApplicationNum=21273/51 |ApplicationDate=1951-09-10 |PatentNum=705613 |PatentDate=1954-03-17 |PriorityDate=1951-05-01 |Titolo=Improvements in Self-Filling Ball Point Pens |Ma...