E² Trademark

Installation, maintenance and repair of heating, ventilating and air conditioning apparatus and installations, fire protection devices and drive elements for opening windows, and data processing equipment therefor, data transmission apparatus, cables and cable network hardware, and automatic barrier devices to prevent the spread of fire in ventilation ducts, drive elements for opening windows and all parts therefor and control devices therefor

Engineering services, namely, design and technical consultancy with regard to the planning of fire protection devices and data processing equipment therefor, data transmission apparatus, cables and cable networks, and automatic barrier devices to prevent the spread of fire in ventilation ducts, drive elements for opening windows and all parts therefor and control devices therefor, being engineering services

Heating, ventilating and air conditioning apparatus and installations, in particular radial fans, outer wall air vents, overflow channels and structural components therefor and room ventilation systems consisting of the aforesaid apparatus

Electric equipment and instruments namely, switches, time delays, 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 or reference variable-dependent circuits in the nature of sensor-guided electronics for the control of heating, ventilating and air conditioning systems, in particular for the reference variables humidity, light, movement, temperature and gas levels 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 thermally activated manually resettable fire safety valves, fire sensors and data processing equipment therefor, data transmission apparatus in the nature of wireless communication devices for data transmission, copper cables and cable networks comprising of copper, and automatic barrier devices to prevent the spread of fire in ventilation ducts in the nature of metal devices for use in fire suppression systems; electric drive elements for opening windows in the nature of power controllers and structural parts therefor and control devices therefor