1
CHEMICAL ETCHANTS FOR METALLIC PRODUCTS, CHEMICAL DIPS FOR METAL ALLOYS, CHEMICAL DESCALERS FOR HEAT TREATED, HARDENED OR FORGED METALLIC MATERIALS, AND CHEMICAL COMPOUNDS FOR ACCELERATING THE RATE OF METAL REMOVAL IN VIBRATORY FINISHING, BURNISHING COMPOUNDS FOR METALLIC MATERIALS, AND LOOSE GROUND CORNCOB FOR INDUSTRIAL USE IN METAL TREATMENT AND FINISHING FOR THE SURFACE IMPROVEMENT OF CASTINGS, PRESSINGS, FORGINGS, MACHINED PARTS, AND THE LIKE; CHEMICALS FOR INDUSTRIAL WASTEWATER TREATMENT
2
RUST PREVENTATIVES IN THE NATURE OF COATINGS
3
CLEANING AND RUST REMOVING PREPARATIONS FOR INDUSTRIAL USE IN METAL TREATMENT AND FINISHING FOR THE SURFACE IMPROVEMENT OF CASTINGS, PRESSINGS, FORGINGS, MECHANICAL PARTS, AND THE LIKE
7
EQUIPMENT FOR INDUSTRIAL WASTEWATER TREATMENT, NAMELY, SLUDGE DEWATERING FILTERS, MIXING TANKS, PNEUMATIC PUMPS, METERING PUMPS, PROCESS CONTROL PANELS, MIXERS, PH CONTROLERS, CLARIFIERS, SLUDGE DRYERS, AND EVAPORATORS
17
SHAPED SOLID COMPOSITES OF PLASTIC OR CERAMIC WITH ABRASIVE PARTICLES DISPERSED THEREIN FOR USE IN METAL TREATMENT AND FINISHING FOR THE SURFACE IMPROVEMENT OF CASTINGS, PRESSINGS, FORGINGS, MACHINED PARTS, AND THE LIKE FOR USE IN INDUSTRIAL WASTEWATER TREATMENT