Testing plug for sewer lines,申请号US19610138985-传众专利搜索

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发明名称	Testing plug for sewer lines
摘要
申请公布号	US3120859(A)	申请公布日期	1964.02.11
申请号	US19610138985	申请日期	1961.09.18
申请人	WAKLEY JOHN W	发明人	WAKLEY JOHN W.
分类号	E03F7/02;F16K7/10	主分类号	E03F7/02
代理机构		代理人
主权项
地址

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