US5735503A
(en )
1998-04-07
Servo pressure regulator for a gas valve
US4172466A
(en )
1979-10-30
Self-actuated pilot-controlled safety valve
GB1530310A
(en )
1978-10-25
Fluid flow control valves
US3433262A
(en )
1969-03-18
Bilevel pressure regulating valve
US3300174A
(en )
1967-01-24
Gas valve
US3525355A
(en )
1970-08-25
Flow control apparatus
US1956977A
(en )
1934-05-01
Combined regulating and snap action gas valve
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(en )
1982-08-31
Instantaneous water heater gas control valve
US3727836A
(en )
1973-04-17
Manifold gas valve
US3578243A
(en )
1971-05-11
Stepped-flow gas valve
US2311061A
(en )
1943-02-16
Governor valve mechanism
GB423776A
(enrdf_load_stackoverflow )
GB1058587A
(en )
1967-02-15
Thermostatic control device for a fuel burner
US4009861A
(en )
1977-03-01
Step opening gas valve
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(en )
1962-11-20
Manifold valve
US20240142103A1
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2024-05-02
Partially-premixed gas burner appliance
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(en )
1976-02-11
Gaseous flow control devices for burners
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(en )
1962-05-22
Valve structure and system
US1800280A
(en )
1931-04-14
Regulating means for gas-burning heating apparatus
US2957518A
(en )
1960-10-25
Control device for flow of fluids
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1935-08-13
Safety lighting device
GB475773A
(en )
1937-11-25
Improvements in and relating to gas valves and controlling arrangements therefor
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1959-08-25
Water flow regulator for water heater
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(en )
1931-03-17
Diaphragm-controlled gas-valve heating system
GB470469A
(enrdf_load_stackoverflow )