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Safety apparatus for room heating device

Combustion – Timer – programmer – retarder or condition responsive control – By combustion or combustion zone sensor
Patent

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Safety apparatus in gas heating device

Combustion – Timer – programmer – retarder or condition responsive control – By combustion or combustion zone sensor
Patent

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Safety circuit for monitoring a flickering flame

Combustion – Timer – programmer – retarder or condition responsive control – By combustion or combustion zone sensor
Patent

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Safety device for fan heater

Combustion – Timer – programmer – retarder or condition responsive control – By combustion or combustion zone sensor
Patent

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Safety device of the friction ratchet type operable on extinctio

Combustion – Timer – programmer – retarder or condition responsive control – By combustion or combustion zone sensor
Patent

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Safety equipment for gas burner

Combustion – Timer – programmer – retarder or condition responsive control – By combustion or combustion zone sensor
Patent

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Safety pilot burners

Combustion – Timer – programmer – retarder or condition responsive control – By combustion or combustion zone sensor
Patent

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Safety valve supply circuit for the ignition of a gas burner

Combustion – Timer – programmer – retarder or condition responsive control – By combustion or combustion zone sensor
Reexamination Certificate

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Self-powered flame monitoring apparatus

Combustion – Timer – programmer – retarder or condition responsive control – By combustion or combustion zone sensor
Patent

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Self-powered gas appliance

Combustion – Timer – programmer – retarder or condition responsive control – By combustion or combustion zone sensor
Patent

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Self-powered intermittent ignition and control system for gas co

Combustion – Timer – programmer – retarder or condition responsive control – By combustion or combustion zone sensor
Patent

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Shutoff system for gas fired appliances

Combustion – Timer – programmer – retarder or condition responsive control – By combustion or combustion zone sensor
Patent

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Stationary flame scanner for tilting burner

Combustion – Timer – programmer – retarder or condition responsive control – By combustion or combustion zone sensor
Patent

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System for redundantly processing a flame amplifier output signa

Combustion – Timer – programmer – retarder or condition responsive control – By combustion or combustion zone sensor
Patent

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