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Results for "African Americans -- Washington (D.C.)"
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Subject: Smithsonian Astrophysical Observatory
Subject: Instruments
Subject: Patents
Creator
Unknown (1)
Subject
Abbot (1)
Astrophysics (1)
C. G (Charles Greeley) b. 1872 (1)
Instruments (1)
Inventions (1)
Observatories (1)
Patents (1)
Secretariats (1)
Secretaries (1)
Silver Disk Pyrheliometer (1)
Smithsonian Astrophysical Observatory (1)
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Showing results 1 - 1 of 1 for
African Americans -- Washington (D.C.)
Patent Drawing for Abbot's Pyrheliometer
Date:
1940?
Creator
: Unknown
Creator
: Unknown
Showing results 1 - 1 of 1 for
African Americans -- Washington (D.C.)
