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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
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FR832769D1937-10-211938-01-29
Method of manufacturing tools in cast steel, and melting furnace for the implementation of this process
ExpiredFR832769A
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Metallurgical product, its manufacturing process, its use for the manufacture of metals by melting as well as for welding and electric furnace for melting metals