(under subclass 223) Apparatus having a fluid pressure gauge or indicator combined therewith.
SEE OR SEARCH THIS CLASS, SUBCLASS:
224+, for inflation devices having fluid pressure responsive pressure control means in association with a fluid pressure gauge or indicator or wherein the pressure responsive means is also a gauge or indicator or part thereof.
557, for combinations of fluid delivery systems other than inflatable article filling chucks or stems with fluid pressure responsive gauges or indicators.
524, for check and safety valves having means to adjust and indicate the setting of the biasing means.
SEE OR SEARCH CLASS
73, Measuring and Testing, 146.2+, for fluid pressure gauges connected to a tire value stem and mounted on the stem or a vehicle carrying the stem and subclasses 700+ for fluid pressure gauges, per se.
116, Signals and Indicators,
34, for signals, indicators and alarms for indicating when tire pressure is different from a desired valve.
