DYNASCAN <DYNA.O> COMPLETES MANAGEMENT BUYOUT Dynascan Corp said it completed the sale of its industrial electronic products group and expects to recognize about a 3.0 mln dlr pretax gain on the transaction in the fourth quarter. It said the group was sold October 15 for 13.5 mln dlrs to Maxtec International Corp, a privately held company created by the company's management team. It said the purchase price was 12 mln dlrs in cash and 1.5 mln dlrs in five-year notes plus warrants to buy 7.0 pct of the stock of Maxtec. Dynascan said the group was projected to provide about 12 pct of its consolidated sales in 1987.