PIPE CASING SIDE CONNECTOR,申请号CA19700086105-传众专利搜索

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发明名称	PIPE CASING SIDE CONNECTOR
摘要
申请公布号	CA920166(A)	申请公布日期	1973.01.30
申请号	CA19700086105	申请日期	1970.06.22
申请人	WELLSTEIN W	发明人	WELLSTEIN W
分类号	E21B33/00	主分类号	E21B33/00
代理机构		代理人
主权项
地址

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