73328620
Sep 18, 1981
May 17, 1983
Electrical Apparatus Comprising Data Acquisition & Control Systems-Namely, Electrical Signal Amplifiers, D.-C. Amplifiers, A.-C. Amplifiers, Carrier Amplifiers, Measurement & Control Systems, Comprising Computers, Interfaces, Bus Circuit, Tape Recorders and Magnetic Disk Storage Apparatus, Multiplexers, Signal Conditioning Apparatus, and Computer Interfaces
Electrical and Scientific Apparatus