TREA

Etsuko Kumata

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Member for retaining rolling bodies
    • Patent number 5,180,231
    • Issue date Jan 19, 1993
    • Koyo Seiko Co., Ltd.
    • Hiroshi Ueno
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...