IC 011. US 013 021 023 031 034. G & S: Lighting apparatus and lighting installations using lamps with electronic ballast units or electronic power control units
IC 037. US 100 103 106. G & S: Installation, maintenance and repair of electric equipment, lighting apparatus and installations
IC 041. US 100 101 107. G & S: Rental of lighting apparatus for film and television recording; rental of electrical converters and control devices for temporarily installed lighting means and installations used for recording films and televisions productions
IC 042. US 100 101. G & S: Technical planning and development of lighting installations and control devices therefore
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