|
US2788942A
|
|
Manual operator with electrical release for power operated valves
|
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Contacting semi-metallic electrical conductors
|
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GB775970A
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Thermoelectric generator
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GB765884A
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Lead-tellurium alloy electrical conductor elements
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GB775968A
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Thermoelectric generator
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Safety shut-off and automatic control device for gaseous fuel burners
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Pilot burner-thermoelectric generator assembly
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US2773649A
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Circuit-controlling device
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Thermoelectric generator
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US2763705A
|
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Pilot burner-thermoelectric generator assemblies
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US2763313A
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Lock nut mounted on a leaf spring or similar member
|
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|
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Sealing means
|
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US2767923A
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Modulating and shut-off control apparatus
|
|
US2766961A
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Valve
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US2737555A
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Thermostat
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|
US2751975A
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Control apparatus
|
|
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Electromagnetic control device
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Thermoelectrically powered control apparatus
|
|
US2756370A
|
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Electromagnetic control device with manual operator and electroresponsive release
|
|
GB735762A
|
|
Control apparatus for fluid fuel buring apparatus
|
