US PATENT SUBCLASS 165 / 247
.~.~.~ Responsive to temperature

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

200  DF  WITH TIMER, PROGRAMMER, TIME DELAY, OR CONDITION RESPONSIVE CONTROL {14}
201  DF  .~ Having heating and cooling capability {13}
244  DF  .~.~ Means to control fan or pump to regulate supply air flow or supply water flow {3}
247.~.~.~ Responsive to temperature

DEFINITION

Classification: 165/247

Responsive to temperature:

(under subclass 244) Subject matter wherein the delivered rate is varied according to a measured temperature.