73477089
Apr 23, 1984
Apr 9, 1985
Industrial Control Systems for Architectural and Theatrical Stage Lighting, Composed of Various Combinations of Dimmer Modules, Microprocessor Control Units, an Operating Control Station and Pre-Set Programming Panels; and Incandescent Sign and Display Systems, Consisting of Various Combinations of Lamps, Bulbs, Light Strip Modules, a Power Supply Unit and Microprocessor Control Units
Electrical and Scientific Apparatus