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F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
F27D99/00—Subject matter not provided for in other groups of this subclass
F27D99/0001—Heating elements or systems
F27D99/0003—Heating elements or systems with particulate fuel, e.g. aspects relating to the feeding
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FR551016D1922-05-051922-05-05Alimentateur de charbon pour four à feu continu cuisant la brique, la pierre à ciment ou produits similaires
ExpiredFR551016A
(fr)