(under subclass 117) Subject matter combined with apparatus producing a qualitative or quantitative output representative of a characteristic of the modulator or its signals.
SEE OR SEARCH THIS CLASS, SUBCLASS:
150, for measuring in an amplitude modulator.
SEE OR SEARCH CLASS
331, Oscillators,
64, for an oscillator with indicator.
455, Telecommunications,
67.1+, for measuring or testing in a system with separated transmitter and receiver and subclass 115 for measuring or testing of a telecommunications tramsmitter.
