11 utility distribution units for supplying and controlling the supply of gas, electricity, water, steam, air or refrigerant to utilization outlets; kitchen ventilation systems comprised of exhaust hoods and kitchen ventilation system hoods; refrigerated display cases; self-contained ice cream cabinets; refrigerators and parts thereof; walk-in refrigerators, freezers, and coolers; reach-in refrigerators; wall type refrigerators; florist refrigerators; cold storage doors; defrosters for refrigerators, coolers, freezers and refrigerated display cases; refrigerated display racks; refrigerated tables, counters and shelving parts and accessories thereof; electric immersion heaters for heating food and beverages; electric immersion coolers for cooling food and beverages; refrigerated counter tops; refrigeration cooling units; refrigeration store display units; heat exchangers for industrial use; portable blowers; electrically powered cooking systems, namely, convection steamers, combination ovens, connectionless steamers, steam jacketed kettles, electric and gas heated tilted braising pans; fluid filters, mechanically cleaned filters, backwash filters, vacuum filters, disposable media filters for food service materials, namely, supply water, wash water, batter, sugars and coatings for food; refrigerated beverage dispensing units; installations and apparatus for cooling and chilling, namely, refrigerators, freezers, self-contained cooling equipment stands comprised of refrigerators, freezers, electric stovetops and electric grills; electric food warmers in the nature of hot food tables; electric food warming units for institutional food service in the nature of mobile cafeteria serving and storage stations; kitchen ventilation systems comprised of exhaust hoods and air volume controllers; convection combination ovens; pressureless electric and gas food steamers; electric and gas braising pans; blast chillers for commercial food preparation and storage; tray assembly systems comprised of assembly line conveyor machine; Flat, curved and specialty glass in the nature of slider windows and viewing windows for commercial refrigeration merchandise displays; glass windows for vending machines; non-metal hardware being parts of door and window hardware, namely, gaskets and vinyl frame cover strips for refrigerated merchandise display cases; metal hardware, namely, shelving, case panels and replacement parts of refrigeration merchandise displays; lighting fixtures; lighting ballasts; lens systems that improve light output and uniformity and project lighting comprising lenses, lighting elements and supports for use with refrigerated merchandise display cases; optical lens covers for protecting lights for use in display cases; clips being parts of lens systems for attaching said systems to refrigerated merchandise display cases; sockets for electric lights; non-metal mullions being parts of refrigerated merchandise display cases; end caps to close ends of lens systems being parts of refrigerated merchandise displays cases; doors being parts of refrigerated merchandise display cases, shelving being parts of refrigerated merchandise display cases; electrical lighting fixtures, and parts thereof; structural components and equipment being parts of refrigerated merchandise display cases and doors thereof, namely, shelving, dividers, hooks, basket shelves, price tag molding, and deli view boards; glass being parts of refrigerated merchandise display cases; metal hardware for refrigerated display cases, namely, doors, display doors for viewing product for sale, door frames, door handles, mullions, door contact plates, and door mounting hardware not electrically operated, namely, hinges, hold opens and door stops; and light mounting hardware, namely, metal brackets; non-metal hardware for refrigerated display cases, namely, doors, door frames, mullions and frame covers; structural components and equipment for refrigerated display cases, namely, refrigerated display case doors, refrigerated display case door frames, hinges, hold opens and door stops; and lighting systems, namely, electric lighting fixtures, sockets for electric lights, fluorescent lamps, and lighting units, all for refrigerated display cases; Installations for refrigeration, lighting and heating and other environmental control apparatus, namely, heaters, thermostats, humidistats, electric lights and wiring, all sold as component parts of refrigerated storage units; pipes being parts of heating, ventilation and sanitation installations; sanitary apparatus and installations, namely, water heaters; air-conditioning and ventilation apparatus and instruments; heating installations, heating boilers; heat exchangers not being parts of machines; water taps for pipes; control and safety devices for water supply plants, namely, water regulation apparatus, namely, metered valves, water meters and water quantity indicators, luminous or mechanical signaling instruments consisting of panels signaling water density, temperature, pressure and levels, pressure indicators and pressure gauges, densimeters, thermostats and temperature indicators; sanitary apparatus and installations, namely, toilets and sinks; radiators; water filtration apparatus