73302291
Mar 23, 1981
Sep 14, 1982
Electrical Apparatus-Namely, A.C. Line Conditioners, Uninterruptible Power Supply Systems, D.C. to A.C. Inverters, A.C. Power Sources (Solid State Frequency Converters) in the Nature of High Power (High Fidelity) Amplifiers Driven by a Precision Signal Source for Electrical/Electronic Testing and Systems Applications, High Isolation Transformers, Digital/Analog Programmers for A.C. Power Sources, and A.C. Line Regulators
Electrical and Scientific Apparatus