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Class Information
Number: 236/61
Name: Automatic temperature and humidity regulation > Air-relief valves > Radiator type > Thermostatic > With pressure control
Description: Air relief-valves controlled by both thermostatic and pressure-controlled means.

Patents under this class:

Patent Number Title Of Patent Date Issued
7575012 Gas supply apparatus Aug. 18, 2009
6276312 Thermal control cooling system vacuum valve Aug. 21, 2001
4489883 Temperature regulated dual pressure device Dec. 25, 1984
4147302 Home heating system control Apr. 3, 1979

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