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Cheng-Yi Yu

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  • Changhua Hsien, TW
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  • Information Patent Grant

    Dual-purpose chair
    • Patent number 6,554,353
    • Issue date Apr 29, 2003
    • Cheng-Yi Yu
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents