Piccardi
{{PatentInfo |Inventor=William H. Lindemon, Mark G. Lammers |Assignee=W. A. Sheaffer Pen Company |Country=US |ApplicationNum=517899 |ApplicationDate=1931-02-24 |PatentNum=1920409 |PatentDate=1933-08-01 |PriorityDate=1931-02-24 |Titolo=Swaged tip for me...