Detroit-based Unisys Corp. said it completed the...

Detroit-based Unisys Corp. said it completed the acquisition of Timeplex Inc., Woodcliff Lake, N.J., in a stock swap with a value of about $324 million . . . Memorex International N.V. said it had accepted 13.27 million shares of Telex Corp. under its $62 a share tender offer to acquire 90% of Telex’s outstanding stock . . . Texas Air Corp said it has extended the expiration date of the tender offer for 20% participating non-cumulative convertible preferred stock of its Eastern Air Lines subsidiary to Feb. 5 . . . French Champagne makers said they sold nearly 218 million bottles last year, up 6.2% from 1986.