KIRSCHNER <KMDC> COMPLETES PURCHASE Kirschner Medical corp said it completed the acquisition of Minnesota Mining and Manufacturing's <MMM> orthopedic metal implant line division. The acquisition price is 12.0 mln dlrs in cash, a six mln dlr three year note and 100,000 shares of Kirschner common stock. The division had sales of 11.3 mln dlrs in 1986.