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Scientific American, Vol. 86, No. 26 (1902) (1902)
leaf 4
one hand. Most to move ordinarily. wy of operating with the tractor show that it will plow of the engines are provided with a steel drum upon The ordinary highways have such steep ascents, that frequently the tractor can reach the summit only by and harrow, seed and harvest a certain area at about… … THE TRACTOR IN LUMBERING OPERATIONS. © 1902 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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