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(en )
1985-10-01
Gas valve with combined manual and automatic operation
CA1100030A
(en )
1981-04-28
Safety control for furnace burner
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1982-05-18
Safety control for furnace burner
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(en )
2004-12-02
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2003-10-21
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(en )
1982-08-31
Instantaneous water heater gas control valve
GB812413A
(enrdf_load_stackoverflow )
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(en )
1966-02-22
Manifold gas valve
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(en )
1951-09-04
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(en )
1975-10-28
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(en )
1953-02-10
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(en )
1954-07-13
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(en )
1935-07-16
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(en )
1939-07-04
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(en )
1941-10-14
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(en )
1953-09-29
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(en )
1930-10-28
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(en )
1935-08-13
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(en )
1974-04-16
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2018-04-17
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1932-01-19
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1935-03-19
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GB1063780A
(enrdf_load_stackoverflow )