75533852
Aug 10, 1998
Feb 11, 2003
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-operator 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