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Three-stage relay control
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Patent number 6,786,225
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Issue date Sep 7, 2004
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Emerson Electric Co.
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Mark H. Stark
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Slow opening gas valve
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Patent number 6,263,908
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Issue date Jul 24, 2001
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Emerson Electric Co.
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John J. Love
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Solenoid gas valve
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Patent number 5,199,456
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Issue date Apr 6, 1993
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Emerson Electric Co.
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John J. Love
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Gas valve
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Patent number 4,718,448
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Issue date Jan 12, 1988
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Emerson Electric Co.
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John J. Love
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Gas valve
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Patent number 4,424,830
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Issue date Jan 10, 1984
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Emerson Electric Co.
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Preston R. Arnsperger
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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