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一种混凝土楼板的预留洞口封堵结构

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  • Affilication of Author(s):土木工程学院

  • Patent Coverage:国内

  • School Sign:单独

  • First Author:刘祥

  • Type of Patent:Utility models

  • State of Patent:专利授权

  • Application Number:202320356989.4

  • Authorization number:CN 219281357 U

  • Service Invention or Not:no

  • Application Date:2023-03-01

  • Authorization Date:2023-06-30

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