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Scientific American, Vol. 69, No. 21 (November 1893) (1893)
leaf 3
e shafts the valves are held stationary during may have suitable crank arms, for propelling the part of a revolution of the shaft, and sleigh by hand, or they may be connected by pitmen when in their outermost position in with a motor, and the paddle wheels have spokes, each the steam chests, but… … SCHAEFER'S IMPROVED PROPELLER SLEIGH. © 1893 SCIENTIFIC AMERICAN, INC.Gas · Patents · Air · Munn · Scientific American · Adapted · Largest circulation · Gas motors · Rand drill · Carbonic acid · Nitrous acid · Sewing machine · Storage battery · Horse power · Gas engine
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