Ripper, William, 1853-1937 · London, New York [etc.] : Longmans, Green and co. · leaf 7
One Itritixh Thcrmul unit is repnsviittt] hj tliiH urvii tV()luuu-<i III ruble fftt art.- figured thusAbnoluU* prvffUivK in lbs. pi;r. iq. inch azv li^Ul(^<) IhuKPryncM frmction* are figumi thus. . _. . . STEAM-ENGINE THEORY AND PRACTICE BY WILLIAM RIPPER, C.H. D.ENG. (SHEFFIELD), HON. D.SC.…
Steam-engines
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