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F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
F27B17/00—Furnaces of a kind not covered by any preceding group
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FR551112D1922-05-081922-05-08Four pour la cuisson de la céramique et du plâtre permettant l'utilisation, comme combustible, de roches bitumineuses
ExpiredFR551112A
(fr)