Piccardi
{{PatentInfo |Inventor=Roderick J. Mackenzie |Assignee=Crocker Pen Company |Country=US |ApplicationNum=342071 |ApplicationDate=1919-12-03 |PatentNum=1390366 |PatentDate=1921-09-13 |PriorityDate=1919-12-03 |Titolo=Fountain-pen |Marca=Crocker |Descrizio...