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Class Information
Number: 236/DIG.3
Name: Automatic temperature and humidity regulation > Safety electric
Description:










Patents under this class:

Patent Number Title Of Patent Date Issued
5287048 Electronic gas valve power interruption switch Feb. 15, 1994
4987881 Fuel burning furnace Jan. 29, 1991
4922890 Fuel burning furnace May. 8, 1990
4552304 Electronic gas valve pulsator Nov. 12, 1985
4245814 Fluid shut-off device Jan. 20, 1981
3968489 Apparatus for monitoring the operation of heater controllers Jul. 6, 1976











 
 
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