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Heat energy and fuels: pyrometry, combustion, analysis of fuels and manufacture of charcoal, coke and fuel gases. Translated by Oskar Nagel (1908)
Jüptner von Jonstorff, Hanns, Freiherr, 1853- · New York McGraw · leaf 241
1 D D 1 1 a Q 1 1 □ n 1 : n □ 1 1 □ □ 1 n n □ a =— —=—1 — 1 Figs. 60 and 61. — Closed Piles (for coking). … Figs. 62 and 63. — Riesa Oven.Fuel · Heat
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
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