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Method for manufacturing a heat exchanger
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Patent number 4,603,460
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Issue date Aug 5, 1986
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Matsushita Electric Industrial Co., Ltd.
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Nobuyuki Yano
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Heat exchanging system
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Patent number 4,582,129
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Issue date Apr 15, 1986
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Matsushita Electric Industrial Co., Ltd.
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Nobuyuki Yano
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F24 - HEATING RANGES VENTILATING
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Heat exchanger apparatus
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Patent number 4,574,872
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Issue date Mar 11, 1986
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Matsushita Electric Industrial Co., Ltd.
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Nobuyuki Yano
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F24 - HEATING RANGES VENTILATING
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Air-conditioning machine
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Patent number 4,478,053
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Issue date Oct 23, 1984
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Toyota Jidosha Kabushiki Kaisha
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Nobuyuki Yano
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F24 - HEATING RANGES VENTILATING