Patents
Release time: 2021-03-04Hits:
  • Patent Applicant:李叶青(S),高文忠(O),周建勋(S)
  • Note:专利证书编号:ZL201710337349.8
  • Service Invention or Not:no
  • Application Date:2017-05-17
  • Publication Date:2017-08-29
  • Authorization Date:2020-03-24
  • First Author:yanshijie
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