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Patents Grantslast 30 patents

  • Information Patent Grant

    Weather-resistant polishing pad
    • Patent number 10,414,025
    • Issue date Sep 17, 2019
    • HUBEI DINGLONG CO., LTD.
    • Shunquan Zhu
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...