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Patents Grantslast 30 patents

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    • Patent number 7,671,279
    • Issue date Mar 2, 2010
    • Yongjiang Yin
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

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    • Publication number 20080277135
    • Publication date Nov 13, 2008
    • Yongjiang Yin
    • H01 - BASIC ELECTRIC ELEMENTS