75405022
Dec 15, 1997
Aug 15, 2000
Power operated tools and machines, namely, sieve rakes, sand washers, washers for material deposited on sieve rakes, screenings washers, presses for material deposited on sieve rakes, screenings presses, sand classifiers, sand removers, and sand cleaners
MachineryDewatering machines; waste water treatment plants, and parts therefor, namely, sieve rakes, sand washers, washers for material deposited on sieve rakes, screening washers, presses for material deposited on sieve rakes, screening presses, sand classifiers, sand removers, and sand cleaners; waste water purification units
Environmental Control Apparatus