MINNTECH CORP <MNTX.O> 4TH QTR MAR 31 NET Opr shr nil vs seven cts Opr net 3,000 vs 99,000 Revs 2,745,000 vs 2,395,000 Avg shrs 1,500,000 vs 1,375,000 Year Opr shr 24 cts vs 20 cts Opr net 343,000 vs 271,000 Revs 10.7 mln vs 8,232,000 Avg shrs 1,459,000 vs 1,341,000 NOTE: Earnings for year exclude gains due to tax loss carryforward of 210,000 dlrs or 14 cts a share in 1987 and 198,000 dlrs or 15 cts in 1986.