TREA

Cong Liu

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  • Weihai, Shandong, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cooling chuck
    • Patent number 11,117,198
    • Issue date Sep 14, 2021
    • SHANDONG WEIDA MACHINERY CO., LTD.
    • Wenzhang Qiao
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

  • Information Patent Application

    Drill Chuck
    • Publication number 20210197292
    • Publication date Jul 1, 2021
    • SHANDONG WEIDA MACHINERY CO.,LTD.
    • Yanzhao LI
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Cooling Chuck
    • Publication number 20200215654
    • Publication date Jul 9, 2020
    • SHANDONG WEIDA MACHINERY CO,, LTD.
    • Wenzhang Qiao
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR