3/11/2023 0 Comments Callnote will stop in the middle239000007789 gas Substances 0.000 claims abstract description 40.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 陈为增 filed Critical 陈为增 Priority to CNU2007200069036U priority Critical patent/CN201028294Y/en Application granted granted Critical Publication of CN201028294Y publication Critical patent/CN201028294Y/en Anticipated expiration legal-status Critical Status Expired - Fee Related legal-status Critical Current Links Inventor 陈为增 Original Assignee 陈为增 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.) Expired - Fee Related Application number CNU2007200069036U Other languages Chinese ( zh) Google Patents CN201028294Y - Gas leakage automatic control and alarm apparatus CN201028294Y - Gas leakage automatic control and alarm apparatus
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