US PATENT SUBCLASS 236 / 74 R
.~ Electric

Current as of: June, 1999
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236 /   HD   AUTOMATIC TEMPERATURE AND HUMIDITY REGULATION

67  DF  MOTORS {7}
74 R.~ Electric {5}
75  DF  .~.~> Reciprocating or oscillating
76  DF  .~.~> Step-by-step
77  DF  .~.~> Vibrating arm
78 R  DF  .~.~> Relay {4}
74 A  DF  .~.~> Electric motor driven pump

Unofficial Alpha Subclasses: R A

DEFINITION

Classification: 236/74

(under subclass 67) Devices not otherwise classifiable which are operated by electric motors whose operation is controlled by means responsive to the temperature to be regulated.

SEE OR SEARCH CLASS

388, Electricity: Motor Control Systems, Art Collection 934 for running-speed control systems with feedback responsive to a thermal condition.