Risi NA

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  • Hohhot, CN

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  • Information Patent Grant

    Gear train

    • Patent number 7,836,785
    • Issue date Nov 23, 2010
    • Risi Na
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

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    GEAR TRAIN

    • Publication number 20080087121
    • Publication date Apr 17, 2008
    • Risi NA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...