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Scientific American, Vol. 91, No. 20 (1904) (1904)

leaf 4

An illustration from Scientific American, Vol. 91, No. 20 (1904), 1904, leaf 4
e of sub-stations and distributing sys- connection with steam railroads, electric railways, and ment. The exact amount of ore removed was 9,945 tems for operation at the usual potential of 500 or tons. The Hulett machines removed 169 carloads of industrial transportation systems in which the ad-…

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