National Portrait Gallery
Icons of Invention: American Patent Models
May 4, 1990 – September 3, 1990
Patent models originally displayed in the Old Patent Office are on view.
Poster
Smithsonian Institution
IK development site for ODI
National Portrait Gallery
May 4, 1990 – September 3, 1990
Patent models originally displayed in the Old Patent Office are on view.
Poster
