Pipe repair unit,申请号US19450612257-传众专利搜索

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发明名称	Pipe repair unit
摘要
申请公布号	US2478684(A)	申请公布日期	1949.08.09
申请号	US19450612257	申请日期	1945.08.23
申请人	BROOKS WILLIAM W	发明人	BROOKS WILLIAM W.
分类号	F16L55/168	主分类号	F16L55/168
代理机构		代理人
主权项
地址

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