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Class Information
Number: 236/66
Name: Automatic temperature and humidity regulation > Air-relief valves > Radiator type > Thermostatic > Expanding solid
Description: Air relief-valves controlled by a thermostat only, the thermostat being of the expanding-solid type.

Patents under this class:

Patent Number Title Of Patent Date Issued
6360957 Thermally reactive radiator closure assembly Mar. 26, 2002
5909843 Steam radiator exhaust valve Jun. 8, 1999
4828169 Adjustable air valve May. 9, 1989
4337849 Energy management damper Jul. 6, 1982

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