(under the class definition) Apparatus including structure (1) indicating a condition of the work or apparatus, (2) providing for the inspection of the work or apparatus; or (3) providing illumination.
SEE OR SEARCH CLASS
34, Drying and Gas or Vapor Contact With Solids,
88, for a drier having a display, inspecting or indicating means and subclass 89 for a drier having indicating or testing means.
116, Signals and Indicators,
101+, for a thermally responsive alarm and subclasses 216+ for a thermally responsive indicator, per se. 122, Liquid Heaters and Vaporizers,
504.2, for a boiler having an alarm or indicator.
165, Heat Exchange,
11.1, for a residual heat exchange device having an alarm, indicator, signal, register, recorder, or test or inspection means.
236, Automatic Temperature and Humidity Regulation,
94, for automatic control by a thermostat with an indicator or alarm.
340, Communications: Electrical,
500+, for electrical automatic condition responsive indicating systems.
374, Thermal Measuring and Testing,
100+, for a temperature measuring device, per se.
13+, for a combustion device having an indicator or inspection means.