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AT90907525T1989-05-121990-05-14Verfahren und vorrichtung zum schuetzen eines schiffskoerpers oder unterwasserbauwerks gegen biologische verschmutzung.
ATE101566T1
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Verfahren und anlage zur entfernung von geloestem sauerstoff aus chloriertem wasser, insbesondere von meerwasser, mittels eines sauerstoffarmen stripgases.