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Descriptive accounts of agricultural inventions and of the business cycle, 1940.
INVENTOR NAME:
Christensen, George C.
REPOSITORY:
Library of Congress
Manuscripts Division
101 Independence Ave. SE
Room LM 101
James Madison Memorial Bldg
202-707-5387
Washington, D.C. 20540-4680
http://www.loc.gov
PHYSICAL DESCRIPTION:
2 items.
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