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Heat pump system
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Patent number 4,959,975
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Issue date Oct 2, 1990
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Conserve, Inc.
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Kenneth J. Harris
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F24 - HEATING RANGES VENTILATING
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Heat pump
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Patent number 4,907,738
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Issue date Mar 13, 1990
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Conserve, Inc.
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Kenneth J. Harris
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F24 - HEATING RANGES VENTILATING
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Heat pump and system
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Patent number 4,852,366
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Issue date Aug 1, 1989
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Conserve, Inc.
-
Kenneth J. Harris
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F24 - HEATING RANGES VENTILATING