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Verfahren und vorrichtung fuer den betrieb von naturzug- und ventilator-kuehltuermen, deren rekuperative waermeaustauschelemente aus kunststoff bestehen
Verfahren und Vorrichtung zur kombinierten Entgeistung und Eindampfung von leichtsiedenden, vorzugsweise Alkohol enthaltenden Lösungen, insbesondere von Maischen der Spiritus- und Hefefabrikation