Electric appliance installation and repair; Electrical repairs and installation of solar panels; Electrical repairs and installation of photovoltaic cells and modules; Electrical repairs, maintenance, and installation of electrical wiring, outlets, light fixtures, and electrical panels; Installation, maintenance and repair of solar panel; Installation, maintenance and repair of photovoltaic cells and modules

Doors and windows of metal, window casements, window frames, and window sills of metal; metal window trim; aluminum windows, aluminum doors; metallic window shutters and door shutters; door jambs, door casings, and door frames of metal; door fittings and door trim of metal

systems and equipment for transmitting data to electrical power customers via an electrical power transmission system and for managing information and energy consumption, including (1) equipment for the transmission of data to electrical power customers via an electrical power transmission system, including signal generators for generating a signal containing data to be transmitted, amplifier and interface units for superimposing the data signal on high voltage electrical power lines, receive...