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Scientific American, Vol. 66, No. 25 (June 1892) (1892)

leaf 14

An illustration from Scientific American, Vol. 66, No. 25 (June 1892), 1892, leaf 14
Sftitutitit %Mxxau. June 18, 1892.3 397 … BATES ROCK & ORE BREAKER OIL WELL SUPPLY GO. Awarded the Grand Prize at late Paris Exposition. employment of convict labor or the labor of " assisted " foreign immigrants brought into this country for the Capacity a p t o 200 tons per boar. gurpose under contract or agreement. Preference will 91 &…

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