BAYER USA <BAYRY> AFFILIATES INCREASED SALES Bayer USA Inc said sales of its affiliated operating cmpanies based in the U.S. increased in 1986 by 4.4 pct from the previous year. Combined sales were 4.2 billion dlrs, up from 4.0 billion dlrs in 1985, the company said. However, the company said net income was 106.9 mln dlrs, three pct below 1985. Bayer said its operating companies include Mobay Corp, Miles Laboratories Inc, Agfa-Gevaert Inc, Compugraphic Corp, Haarmann and Reimer Corp, Deerfield Urethane Inc and Helena Chemical Co. Bayer said Mobay, its primary chemicals company, reported net income of 83.4 mln dlrs, up eight pct of 1985. It also said Miles, its pharmaceutical and healthcare company, recorded net income of 29 mln dlrs, a 44 pct increase over 1985.