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Vacuum heat insulator
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Patent number 4,486,482
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Issue date Dec 4, 1984
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Hitachi, Ltd.
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Nobuyuki Kobayashi
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E04 - BUILDING
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Apparatus for storing heat
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Patent number 4,366,856
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Issue date Jan 4, 1983
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Hitachi, Ltd.
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Michio Yanadori
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F28 - HEAT EXCHANGE IN GENERAL
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Refrigerator
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Patent number 4,130,997
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Issue date Dec 26, 1978
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Hitachi, Ltd.
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Toshitsugu Hara
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...