Vacuum cleaner apparatus including central vacuum cleaner systems and parts and accessories therefor included in this class; electric door bells, chimes and buzzers and parts and accessories included in this class, intercom systems including intercom systems including radio and/or tape discs player/recorder

Ventilating and exhausting hoods including range hoods and parts and accessories included in this class; fans included in this class including ceiling fans, whole-house ventilators; attic ventilators; exhaust fans, exhaust fans with light and/or heater, ductless fans, fan parts and accessories included in this class; heaters and air conditioners; lighting apparatus and parts and accessories included in this class