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Publication of BG18836A3publicationCriticalpatent/BG18836A3/xx
B61D27/00—Heating, cooling, ventilating, or air-conditioning
B61D27/0018—Air-conditioning means, i.e. combining at least two of the following ways of treating or supplying air, namely heating, cooling or ventilating
B61D27/0027—Air-conditioning means, i.e. combining at least two of the following ways of treating or supplying air, namely heating, cooling or ventilating for freight cars; Isothermic wagons