Results for "Patent Office Building (Washington, D.C.)"

 
Showing results 1 - 5 of 5 for Patent Office Building (Washington, D.C.)
  1. SI History Chronology

    Elevators Installed in NHB and SI Building

    • Date: 1941

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  3. SI History Chronology

    Office Space Added in Hall 24 of NHB

    • Date: 1972

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  5. SI History Chronology

    Natural History Building East Wing Completed

    • Date: 1963

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  7. SI History Chronology

    Natural History Building West Wing Opens

    • Date: 1965

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  9. SI History Chronology

    East Wing Construction Approved by Congress

    • Date: May 13, 1960

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Showing results 1 - 5 of 5 for Patent Office Building (Washington, D.C.)