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Scientific American, Vol. 30, No. 19 (1874) (1874)
leaf 3
. The three coils are estimated by the inven- engines; but grates very steeply inclined are still much used joints, and, by the contraction of the metal in cooling, draws the ends of the pipe close to- there It is very singular that in Europe the exhaust steam al. gether. The exterior of the… … the standard of right and wrong than an inch apart. The inventor BELL'S FUEL ECONOMIZER. © 1874 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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