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Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area (parts, details or accessories of cooking-vessels for withdrawing or condensing cooking vapours from such vessels A 47 J 36/38; refuse disposal B 65 F; devices for conducting smoke or fumes, e.g. flues, F 23 J 11/00; removing cooking fumes from domestic stoves or ranges F 24 C 15/20; air-conditioning, ventilation F 24 F) [5] |
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