姚云龙
Senior Engineer
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Patents
姚云龙;马广英;姚学明.便捷式电动洗浴机CN201420512379.X
  • Type of Patent:
    Invent
  • Authorization number:
    CN104188579B
  • Service Invention or Not:
    no
  • Application Date:
    2014-09-09
  • Authorization Date:
    2016-07-06

Pre One:姚云龙;马广英;姚学明.风浪发电装置CN201520633161.4

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