FLEET TO ACQUIRE ASSETS OF MARK IV <IV> UNIT <Fleet Aerospace Corp> said it agreed in principle to acquire the assets and operations of the Engineered Magnetics division of Gulton Industries Inc, a unit of Mark IV Industries Inc. Terms were undisclosed. Los Angeles-based Engineered Magnetics designs and produces custom power conversion systems mainly for use in the defense and aerospace industries. Its revenues for the year ended February 28 totaled about 20 mln Canadian dlrs.