73389918
Mar 14, 1983
Apr 16, 1985
[Volt, Ohm, and Ammeter Units and Cathode Ray Instruments for ] Measuring and Testing Electrical and Physical Characteristics of Industrial and Domestic Appliances [ ; Visual and Audible Measuring and Signalling Devices-Namely, Buzzers for Industrial and Domestic Appliances ] ; Controls-Namely, Relays, Transformers, Temperature and Moisture Dependent Switching Instruments [ , Switches, Microswitches, Level Regulators, Switchboards, Combinations of the Above Instruments and Parts Thereof; Semiconductor Components-Namely, Transistors, Diodes, Photodiodes, Zener Diodes and Rectifiers ]
Electrical and Scientific Apparatus