INSTALLATION OF TUNNEL LININGS,申请号HK19850000501-传众专利搜索

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发明名称	INSTALLATION OF TUNNEL LININGS
摘要
申请公布号	HK50185(A)	申请公布日期	1985.07.12
申请号	HK19850000501	申请日期	1985.07.04
申请人	MARCON INTERNATIONAL LIMITED	发明人	RICHARDSON, MICHAEL ALEXANDER
分类号	E21B17/08;E21D9/00;(IPC1-7):E21D9/06	主分类号	E21B17/08
代理机构		代理人
主权项
地址

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