Piccardi
{{PatentInfo |Inventor=Marlin S. Baker, Robert W. Randolph |Assignee=The Parker Pen Company |Country=US |ApplicationNum=43468 |ApplicationDate=1948-08-10 |PatentNum=2528328 |PatentDate=1950-10-31 |PriorityDate=1948-08-10 |Titolo=Clutch mechanism for me...