(under the class definition) Subject matter wherein the system is provided with signals, indicators, recorders, or testing means.
(1) Note. For a statement of the systems in this class which include a signal, indicator recorder, or testing, and the general line between Class 322 and the other classes providing for similar subject matter, see the Class 322 Class Definition, Lines With Other Classes, "Load in Output Circuit Recited by Name Only or Significantly,-- Generator and Testing Means for Generator, etc."
SEE OR SEARCH CLASS
116, Signals and Indicators, appropriate subclasses for nonelectric signals and indicators.
324, Electricity: Measuring and Testing, appropriate subclasses for electric testing.
340, Communications: Electrical,
500+, for electric signaling systems automatically responsive to a condition.
346, Recorders, appropriate subclasses for recording arrangements.
