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Heat regenerator
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Patent number 4,082,138
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Issue date Apr 4, 1978
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U.S. Philips Corporation
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Andries Rinse Miedema
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Motor-car radiator
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Patent number 4,034,804
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Issue date Jul 12, 1977
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U.S. Philips Corporation
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Roelf Jan Meijer
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F28 - HEAT EXCHANGE IN GENERAL
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Cooling system
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Patent number 3,994,337
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Issue date Nov 30, 1976
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U.S. Philips Corporation
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George Albert Apolonia Asselman
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F28 - HEAT EXCHANGE IN GENERAL
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Cold-gas refrigerator
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Patent number 3,991,585
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Issue date Nov 16, 1976
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U.S. Philips Corporation
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Jan Mulder
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...