(under the class definition) Apparatus combined with a signal, indicator, inspection means, register or recorder means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
29.1+, and 29.12+, for a process which includes the step of testing or inspecting.
SEE OR SEARCH CLASS
73, Measuring and Testing, appropriate subclasses, for processes and apparatus for making a measurement or test of any kind on glass, per se.
116, Signals and Indicators, appropriate subclasses, for signalling and indicating devices, per se.
177, Weighing Scales, appropriate subclasses for weighing scales, per se. 324, Electricity: Measuring and Testing, appropriate subclasses for apparatus relating to measuring and/or testing
(or sensing) of electrical properties. See the "SEARCH NOTES" under the class definition.
340, Communications: Electrical,
500+, for electrical automatic condition responsive indicating systems.
356, Optics: Measuring and Testing,
32+, for glass strain analysis including the polarized light examination of sheet glass, subclasses 364+ for polarized light testing of glass articles for flaws generally; subclass 371 for flatness testing generally; and subclasses 429+ for monitoring of webs or thread, for optical properties or flaws and subclasses 239.1+ for inspection of transparent or translucent articles for flaws or imperfections.
374, Thermal Measuring and Testing, appropriate subclasses for measuring a thermal parameter or characteristic of glass, per se.
