Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Beijing Precision Environmental Technology Research Center Co ltd, Institute of Hydrobiology of CAS filed Critical Beijing Precision Environmental Technology Research Center Co ltd Priority to CN2009202931163U priority Critical patent/CN201615902U/en Application granted granted Critical Publication of CN201615902U publication Critical patent/CN201615902U/en Anticipated expiration legal-status Critical Status Expired - Fee Related legal-status Critical Current Links Original Assignee Beijing Precision Environmental Technology Research Center Co ltd Institute of Hydrobiology of CAS Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)īeijing Precision Environmental Technology Research Center Co ltd Inventor 蔡庆华 高超 翟松 Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number CN2009202931163U Other languages Chinese ( zh)