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Hits:   Date:2021-09-09

  • Title:Novel ultra-slim acoustic impedance transformer（英国）
  • First Author:Yulin Mei
  • Disigner of the Invention:wangxiaoming,梅艺璇,王元秀
  • Application Number:EP3468223
  • Authorization Date:2016-07-18
  • Authorization number:EP16902832.1(英国)

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