State Intellectual Property Office of China Receives Xi'an Research Institute of China Coal Tech & Engineering Group's Patent Application for Large-Diameter Casing Pipe Lowering Device and Method for Hole Protection of Cross-Layer Drilling

Press/Media

Period19 Jan 2024

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1

Media coverage

  • TitleState Intellectual Property Office of China Receives Xi'an Research Institute of China Coal Tech & Engineering Group's Patent Application for Large-Diameter Casing Pipe Lowering Device and Method for Hole Protection of Cross-Layer Drilling
    Media name/outletGlobal IP News. Pipe Patent News
    Country/TerritoryIndia
    Date19/01/24
    PersonsJun Li