![]() ![]() 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 赵强 filed Critical 赵强 Priority to CN 201210120611 priority Critical patent/CN103374468A/en Publication of CN103374468A publication Critical patent/CN103374468A/en Status Pending legal-status Critical Current Links Inventor 赵强 Original Assignee 赵强 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 as to the accuracy of the status listed.) Pending Application number CN 201210120611 Other languages Chinese ( zh) ![]() Google Patents CN103374468A - Dredging agent for drainage pipeline CN103374468A - Dredging agent for drainage pipeline ![]()
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