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F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
FR887556D1939-06-151942-11-06
Steel melting furnace with recuperator, in particular with metal recuperator, and method of operating the furnace
ExpiredFR887556A
(en)