Set units of toilet bowl and seat; drying apparatus (for chemical processing); recuperators (for chemical processing); steamers (for chemical processing); evaporators (for chemical processing); distillers (for chemical processing); heat exchangers (for chemical processing); milk sterilizers; industrial furnaces; nuclear reactors (atomic piles); forage drying apparatus; industrial boilers; air-conditioning apparatus (for industrial purposes); freezing machines and apparatus; clothes drying machines for industrial purposes; cooking equipment for industrial purposes; industrial dish drying machines; dish disinfectant apparatus for industrial purposes; tap water faucets; level controlling valves for tanks; pipe line cocks; waste water treatment tanks (for industrial purposes), septic tanks (for industrial purposes); garbage incinerators for industrial purposes; garbage incinerators for household purposes; solar water heaters; water purifying apparatus; electric lamps and other lighting apparatus; household electrothermic appliances; washers for water taps, gas water heaters (for household use); non-electric cooking heaters (for household purposes); kitchen worktops; kitchen sinks; ice chests (for household purposes not for carrying with); ice-cooling refrigerators (for household purposes); household tap-water filters; bathtubs and the like; standing paper lanterns; portable paper lanterns; gas lamps; oil lamps; lamp chimneys; warming pans (non-electric); pocket warmers (non-electric); hot water bottles (for warming one's feet in bed); toilet stool units with a washing water squirter; disinfectant dispensers for toilets; toilet bowls; seatings for use with japanese style toilet bowls; waste water treatment tanks for household purposes; septic tanks for household purposes; heating or cooling packs filled with chemical substances ready to react when required; non-electric heating apparatus for household purposes; machines and apparatus for nail art performing to the nail or false nail in beauty parlor, included in this class