US PATENT SUBCLASS 165 / FOR 104
AUTOMATIC CONTROL (165/13)

Current as of: June, 1999
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165 /   HD   HEAT EXCHANGE

FOR 104AUTOMATIC CONTROL (165/13) {2}
FOR 105  DF  .~> Heating and cooling (165/14) {14}
FOR 123  DF  .~> Temperature or pressure (165/32) {4}

DEFINITION

Classification: 165/FOR.104

Foreign art collections comprising means to sense an operating condition or change of operating condition and exert a control on heating or cooling means or on means handling material acted in or to be acted upon by the heating or cooling means.