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Heat radiation plate
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Patent number D300240
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Issue date Mar 14, 1989
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Mitsubishi Denki Kabushiki Kaisha
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Kiyoshi Sakuma
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D23 - Environmental heating and cooling
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Multiroom air conditioner
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Patent number 4,771,610
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Issue date Sep 20, 1988
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Mitsubishi Denki Kabushiki Kaisha
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Yasuo Nakashima
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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Dual refrigerant cooling system
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Patent number 4,624,114
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Issue date Nov 25, 1986
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Mitsubishi Denki Kabushiki Kaisha
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Kiyoshi Sakuma
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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Dual refrigerant cooling system
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Patent number 4,580,415
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Issue date Apr 8, 1986
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Mitsubishi Denki Kabushiki Kaisha
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Kiyoshi Sakuma
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...