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Scientific American, Vol. 81, No. 5 (1899) (1899)
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. WATER AND AIR MOTOR. —————_—_————+ +e ——_.__—_- Lightning Strikes the Washington Monument, Of the accompanying illustrations, Fig. 1 is a side ele- One of the most ingenious and efficient hydraulic It is not uncommon for the Washington Monument vation of the coupling motors which has yet =- —… … The three cylinders Ss century. have a common sup- © 1899 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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