TREA

OSG Mfg. Company

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  • Hoi, JP
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  • Information Patent Grant

    Rolling method and rolling tools
    • Patent number 4,691,551
    • Issue date Sep 8, 1987
    • Toyota Jidosha Kabushiki Kaisha
    • Minoru Haga
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

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