SOIL DISPLACEMENT HAMMER FOR REPLACING UNDERGROUND PIPES,申请号GB19910027525-传众专利搜索

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发明名称	SOIL DISPLACEMENT HAMMER FOR REPLACING UNDERGROUND PIPES
摘要
申请公布号	GB9127525(D0)	申请公布日期	1992.02.19
申请号	GB19910027525	申请日期	1991.12.31
申请人	KAYES, ALLAN G	发明人
分类号	E21B7/30;F16L55/26	主分类号	E21B7/30
代理机构		代理人
主权项
地址

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