(under the class definition) Apparatus combined with a means to indicate or signal a condition or the occurrence of a condition to a human attendant.
(1) Note. Means which signal or indicate are dials, graduations, horns, bells, etc., but a means to form a mere stop or single fixed reference point are not included under this definition and are classified on other features.
SEE OR SEARCH CLASS
340, Communications: Electrical,
500+, for electrical automatic condition responsive indicating systems.
