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Haruo Yamaguchi

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  • Hiroshima, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Drive device for two-shaft extruding machine
    • Patent number 4,679,461
    • Issue date Jul 14, 1987
    • The Japan Steel Works, Ltd.
    • Hideki Mizuguchi
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL