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EVA sole molding die assembly
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Patent number 5,352,105
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Issue date Oct 4, 1994
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Kuo-Nan Yang
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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EVA insole manufacturing process
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Patent number 5,318,645
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Issue date Jun 7, 1994
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Kuo-Nan Yang
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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EVA insole manufacturing process
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Patent number 5,308,420
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Issue date May 3, 1994
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Kuo-Nan Yang
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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EVA insole manufacturing process
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Patent number 5,141,578
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Issue date Aug 25, 1992
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Kuo-Nan Yang
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL