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F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
F27B9/30—Details, accessories or equipment specially adapted for furnaces of these types
F27B9/3005—Details, accessories or equipment specially adapted for furnaces of these types arrangements for circulating gases
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FR607221D1924-12-021925-12-01Perfectionnements aux procédés de cuisson et de refroidissement des produits céramiques en fours-tunnels
ExpiredFR607221A
(fr)