US PATENT SUBCLASS 318 / 641
.~.~ With particular temperature measuring instrument

Current as of: June, 1999
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318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

560  DF  POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) {23}
638  DF  .~ With particular "error-detecting" means {13}
641.~.~ With particular temperature measuring instrument

DEFINITION

Classification: 318/641

(under subclass 638) Subject matter in which the error detecting means is a temperature measuring instrument.

SEE OR SEARCH THIS CLASS, SUBCLASS:

471+, for open-loop automatic motor controls responsive to thermal conditions.

SEE OR SEARCH CLASS

219, Electric Heating,

497+, electric heating, for automatic regulating or control for electric heating means responsive to temperature. 340, Communications: Electrical,

584+, electrical communication systems automatically responsive to temperature.

374, Thermal Measuring and Testing,

168, for a self-rebalancing electrical thermometer.