Patent Office Building (old): Plaques at the Nat'l Portrait Gallery in Washington, D.C. (dcMemorials.com - a pictorial directory of memorials, monuments, statues & other outdoor art)

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Patent Office Building (old): Plaques at the Nat'l Portrait Gallery in Washington, D.C. (dcMemorials.com - a pictorial directory of memorials, monuments, statues & other outdoor art)

The Patent Office Building (old) plaques are located at the south side of the Smithsonian National Portrait Gallery in Washington, D.C. They commemorate the historic Patent Office Building, a key government agency site. The plaques provide historical context and are part of a larger collection of memorials documented by dcMemorials.com. The building is situated between 7th, 9th, F, and G Streets NW, near the Gallery Place-Chinatown metro station.