TREA

Akeshi Kegasa

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  • Kobe, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of lining pipes
    • Patent number 4,950,446
    • Issue date Aug 21, 1990
    • Osaka Gas Company Inc.
    • Namio Kinumoto
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL