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Scientific American, Vol. 31, No. 16 (1874) (1874)
leaf 4
urntables are so contrived ner, so that the turning of the levers turns also the twoend that they lift or lower the main frame exactly by the depth wheels into suitable positions. The plows themselves are of the furrow, according to the direction which is given to of a peculiar shape, the share… … THE SUTHERLAND STEAM PLOW: © 1874 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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