SYSTEM AND PLUG FOR PLUGGING A CONDUIT,申请号GB19900012649-传众专利搜索

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发明名称	SYSTEM AND PLUG FOR PLUGGING A CONDUIT
摘要
申请公布号	GB9012649(D0)	申请公布日期	1990.07.25
申请号	GB19900012649	申请日期	1990.06.06
申请人	OTIS ENGINEERING CORPORATION	发明人
分类号	E21B23/02;E21B33/12	主分类号	E21B23/02
代理机构		代理人
主权项
地址

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