75593983
Nov 23, 1998
Jun 20, 2000
power-operated machines and machine parts, namely, progressive cavity pumps and motors; rotors, stators, drive shafts and flexible drive shafts for use in cavity pumps and motors; power-operated grinders, macerators combined macerators and pumps; macerator cutters; power-operated screw extractors
Electrical and Scientific Apparatusrotary screens for use in sewerage, wastewater and water handling, and parts therefor
Environmental Control Apparatus