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Koichi Hara

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  • Sodegaura, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Polypropylene composition
    • Patent number 4,407,986
    • Issue date Oct 4, 1983
    • Idemitsu Petrochemical Co., Ltd.
    • Manabu Nomura
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...