Piccardi
{{PatentInfo |Inventor=Cecil Bristow |Assignee=Cecil Bristow |Country=GB |ApplicationNum=191203230 |ApplicationDate=1912-02-08 |PatentNum=191203230 |PatentDate=1912-08-01 |PriorityDate=1912-02-08 |Titolo=Improvements in or relating to Stylographic Pens...