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Heat pump defrosting operation
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Patent number 4,974,418
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Issue date Dec 4, 1990
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Honeywell Inc.
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Michael Levine
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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Heat pump defrosting operation
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Patent number 4,974,417
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Issue date Dec 4, 1990
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Honeywell Inc.
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Michael Levine
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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Heat pump defrosting operation
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Patent number 4,951,473
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Issue date Aug 28, 1990
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Honeywell, Inc.
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Michael Levine
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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