Improvements in or relating to Self-Advancing Mine Roof Supports.,申请号GB19660006458-传众专利搜索

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发明名称	Improvements in or relating to Self-Advancing Mine Roof Supports.
摘要
申请公布号	GB1165031(A)	申请公布日期	1969.09.24
申请号	GB19660006458	申请日期	1966.02.14
申请人	GULLICK LIMITED	发明人	ARCHELAIUS DAWSON ALLEN
分类号	E21D17/02;E21D23/00	主分类号	E21D17/02
代理机构		代理人
主权项
地址

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