Subject matter under 665 wherein the sensing device is responsive to a thermal change of the load.
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494+, for electrical resistance heating with a thermally responsive control system.
627, for an induction cooking system responsive to temperature.
710, for a microwave heating system with temperature sensing.
SEE OR SEARCH CLASS
340, Communications: Electrical,
584+, for an indicating system responsive to thermal conditions. 374, Thermal Measuring and Testing, appropriate subclasses for temperature measuring devices.