9 Electric equipment and instruments, namely, switches, time delays in the nature of time switches, interval and inverse circuits for heating, ventilating and air conditioning apparatus and installations, and systems constructed therefrom for filter monitoring or central control; manually operated and reference variable-dependent electric circuits, in particular for the reference variables humidity, light, movement, temperature, gas and other variables affecting air quality, and other reference variables in the field of building technology, for the control of heating, ventilating and air conditioning systems; fire protection barriers in the nature of face shields for protection against fire, fire sensors and data processing equipment therefor, data transmission apparatus, electric cables and cable connectors, and automatic barrier devices in the nature of fire-extinguishing systems to prevent the spread of fire in ventilation ducts; electric drive elements in the nature of electric actuators for opening windows and all structural parts therefor and remote control devices therefor
Trademark: 79309899
