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ELECTRONIC CIRCUITS AND CIRCUIT COMPONENTS, NAMELY, AMPLIFIERS, FILTER S, HYBRIDS, RESISTOR NETWORKS, RESISTOR-CAPACITOR NETWORKS; NETWORKS, HYBRIDS, ATTENUATORS, TERMINATORS AND DIVIDERS FOR COMPUTER COMMUNICATION, TELECOMMUNICATION, INSTRUMENTATION AND MILITARY DEVICES CUSTOM AND STANDARD THICK FILM CIRCUITS AND CIRCUIT COMPONENTS SUCH AS RESISTOR NETWORKS, RESISTOR-CAPACITOR NETWORKS, HYBRID CIRCUITS, AMPLIFIERS, AUDIO AND STEREO PREAMPLIFIERS AND POWER AMPLIFIERS; AND CODECS