SHAFT EXCAVATION SYSTEM,申请号GB19880024111-传众专利搜索

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发明名称	SHAFT EXCAVATION SYSTEM
摘要
申请公布号	GB8824111(D0)	申请公布日期	1988.11.23
申请号	GB19880024111	申请日期	1988.10.14
申请人	NASHCLIFFE LTD	发明人
分类号	B23D57/00;B28D1/08;E21C25/54;E21D1/03	主分类号	B23D57/00
代理机构		代理人
主权项
地址

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