Also . . .

General Electric Co. agreed to buy AT&T; Corp.’s Tridom satellite communications unit for an unspecified price in a move to expand its global communications services. . . . Glaxo Wellcome lost a legal fight to block Novopharm Ltd. from selling the first generic version of the popular anti-ulcer drug Zantac. The federal appeals court ruling will probably clear the way for Novopharm to start selling the drug in July. . . . Republic Industries Inc. agreed to buy Artz Automotive Group of Cleveland for $15.7 million in stock, adding to Chairman Wayne Huizenga’s growing chain of car dealers. . . . Sunbeam Corp., maker of small household appliances, is interviewing investment bankers to consider options that include making hostile takeovers or selling the company.