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Scientific American, Vol. 55, No. 22 (1886) (1886)
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noticed in tarding its rotation about its own axis, so that the so applied was insufficient to accelerate the gyratory the performance of some of these modified forms. wheel descended in a spiral course; and the electric motion. Probably it was not more than enough to Some years since, the writer… … DRIVING GEAR. © 1886 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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