US PATENT SUBCLASS 236 / 40
.~.~ Thermostatic

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

36  DF  HEATING RADIATOR {4}
*  DD  .~ Exhaust operated {2}
40.~.~ Thermostatic {1}
41  DF  .~.~.~> With trap

DEFINITION

Classification: 236/40

(under subclass 36) Heating-radiators provided with a thermostat subjected to the exhaust from the radiator and controlling the supply of heating fluid to the radiator.