INVACARE <IVCR> EXPECTS HIGHER 1987 SALES Invacare Corp chairman, president and chief executive officer A. Malachi Mixon III said he expects the home healthcare equipment company to post sales increases in the 10 to 15 pct range in 1987. Mixon said the increases should come from internal growth as well as potential acquisitions. "Invacare is aggressively seeking acquisitions to complement the company's existing product lines," Mixon said. Earlier, the company reported fourth quarter 1986 net of 1.5 mln dlrs, or 26 cts a share, up from 1.1 mln dlrs, or 19 cts a share, in 1985's fourth quarter. Invacare also reported 1986 net income of 3.4 mln dlrs, or 60 cts a share, up from a loss of 1.1 mln dlrs, or 19 cts a share, in 1985.