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Glass recovery method
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Patent number 7,450,684
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Issue date Nov 11, 2008
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Panasonic Corporation
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Yoshiyuki Tani
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G01 - MEASURING TESTING
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Plastic identifying method
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Patent number 7,161,151
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Issue date Jan 9, 2007
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Matsushita Eco Technology Center Co., Ltd.
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Shouichi Irie
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G01 - MEASURING TESTING
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Method and apparatus for identifying plastic
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Patent number 6,852,977
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Issue date Feb 8, 2005
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Matsushita Electric Industrial Co., Ltd.
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Takao Hisazumi
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Printed wiring board
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Patent number 6,017,246
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Issue date Jan 25, 2000
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Matsushita Electric Industrial Co., Ltd.
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Takao Hisazumi
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H01 - BASIC ELECTRIC ELEMENTS