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Method for collecting metal
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Patent number 8,435,793
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Issue date May 7, 2013
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Semiconductor Energy LaboratoryCo., Ltd.
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Ryoji Nomura
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Method for collecting metal
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Patent number 8,128,727
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Issue date Mar 6, 2012
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Semiconductor Energy Laboratory Co., Ltd.
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Ryoji Nomura
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Fin-tube type heat exchanger
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Patent number 5,170,842
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Issue date Dec 15, 1992
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Matsushita Refrigeration Company
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Kaoru Kato
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F28 - HEAT EXCHANGE IN GENERAL
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Fin tube heat exchanger
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Patent number 5,117,902
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Issue date Jun 2, 1992
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Matsushita Electric Industrial Co., Ltd.
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Hisao Kusuhara
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F28 - HEAT EXCHANGE IN GENERAL
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Fin tube heat exchanger
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Patent number 4,832,117
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Issue date May 23, 1989
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Matsushita Refrigeration Company
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Kaoru Kato
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F28 - HEAT EXCHANGE IN GENERAL
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Heat exchanger
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Patent number 4,723,600
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Issue date Feb 9, 1988
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Matsushita Refrigeration Company
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Shoichi Yokoyama
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F28 - HEAT EXCHANGE IN GENERAL
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Heat exchanger
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Patent number 4,691,767
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Issue date Sep 8, 1987
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Matsushita Electric Industrial Co., Ltd.
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Hiroyoshi Tanaka
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F28 - HEAT EXCHANGE IN GENERAL
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Controlled atmosphere storage method
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Patent number 4,142,372
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Issue date Mar 6, 1979
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Daikin Kogyo Co. Ltd.
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Kaoru Kato
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A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES