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Scientific American, Vol. 69, No. 17 (1893) (1893)
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(Entered at the Post Office of New York, N. Y., as Secona Class matter. Copyrignted. 1898. by Munn & Co. A WEEKLY JOURNAL OF PRACTICAL INFORMATION, ART, SCIENCE, MECHANICS, CHEMISTRY, AND MANUFACTURES. … DE LAVAL’S STEAM TURBINE DEVELOPING A SPEED OF 20,000 REVOLUTIONS, 20 H. P.—(ACTUAL SIZE )—[See page 263.] © 1893 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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