ARRANGEMENT FOR SECURING TUNNEL LINING RINGS,申请号SU19813246574-传众专利搜索

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发明名称	ARRANGEMENT FOR SECURING TUNNEL LINING RINGS
摘要
申请公布号	SU1078083(A1)	申请公布日期	1984.03.07
申请号	SU19813246574	申请日期	1981.02.09
申请人	GRACHEV YURIJ,SU	发明人	GRACHEV YURIJ I,SU
分类号	E21D11/10;(IPC1-7):E21D11/10	主分类号	E21D11/10
代理机构		代理人
主权项
地址

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