IC 009. US 021 023 026 036 038. G & S: Laboratory apparatus and instruments, namely, lasers not for medical use, work benches in the nature of laboratory furniture, centrifuges, and microscopes; machines and instruments for measuring or testing fluid, solid or gaseous materials, namely, water meters, flow meters, flow meters and ultrasonic meter gas sensors; flowmeters; power distribution or control machines and apparatus, namely, electrical power distribution; rotary converters; ozonizers; electrolyzers; fire extinguishers; fire hydrants; fire hose nozzles; sprinkler systems for fire protection; weight belts for scuba diving; inflatable swimming floats for safety purposes; protective helmets for sports; air tanks for scuba diving; swimming flutter boards; regulators for scuba diving

IC 011. US 013 021 023 031 034. G & S: Water purifying apparatus; bathtubs; tap water faucets; level controlling valves for tanks, namely, operated plumbing valve; pipe line cocks; waste water treatment tanks, namely, waste water purification tanks; septic tanks for industrial purposes; waste water treatment tanks for household purposes, namely, waste water purification tanks; septic tanks for household purposes; deodorizing apparatus for drain, namely, water purification and odor reduction apparatus using chemical breakdown processes; sludge disposal equipment, namely, thickening and dewatering machines for use in treatment of liquids including sewage and waste sludge; drying apparatus, namely, dryers for removal of water from compressed air and gasses; heat recuperators for chemical processing, namely, heat exchangers; steamers for chemical processing; evaporators for chemical processing; heat exchangers for chemical processing; plumbing fittings, namely, ball valves for water faucets; plumbing fittings, namely, metal mixer valves for water pipes

IC 017. US 001 005 012 013 035 050. G & S: Valves of rubber or vulcanized fiber not including machine elements; plastic semi-worked products, namely, semi-processed plastic; soundproofing materials of rock wool not for building purposes; asbestos boards; asbestos powder; electrical insulating materials; pipe gaskets; junctions not of metal for fluid pipes; joint packing for fluid pipes

IC 020. US 002 013 022 025 032 050. G & S: Furniture; valves of plastic being other than machine parts; plastic stoppers for industrial packaging containers, namely, non-metallic bottle stoppers; plastic lids and caps for industrial packaging containers; valve handles of plastic

IC 037. US 100 103 106. G & S: Plumbing; machinery installation; building construction; repair or maintenance of chemical processing machines and apparatus