Patents
Release time: 2021-03-04Hits:
  • Patent Applicant:周建勋(S),高文忠(O),李叶青(S)
  • Note:专利证书编号:201710285421.7
  • Service Invention or Not:no
  • Application Date:2017-04-27
  • Publication Date:2017-07-25
  • Authorization Date:2019-03-22
  • First Author:yanshijie
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