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Self-powered gas appliance
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Patent number 4,906,178
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Issue date Mar 6, 1990
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Quantum Group, Inc.
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Mark K. Goldstein
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F24 - HEATING RANGES VENTILATING
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Fuel valve control system
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Patent number 4,806,095
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Issue date Feb 21, 1989
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Quantum Group, Inc.
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Mark K. Goldstein
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Photovoltaic control system
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Patent number 4,793,799
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Issue date Dec 27, 1988
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Quantum Group, Inc.
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Mark K. Goldstein
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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