METHOD OF PROTECTION OF UNDERWORKED OBJECTS FROM UNDERFLOODING WITH GROUND AND SURFACE WATERS,申请号SU19904794042-传众专利搜索

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发明名称	METHOD OF PROTECTION OF UNDERWORKED OBJECTS FROM UNDERFLOODING WITH GROUND AND SURFACE WATERS
摘要
申请公布号	SU1700242(A1)	申请公布日期	1991.12.23
申请号	SU19904794042	申请日期	1990.02.19
申请人	VNII GORNOJ GEOMEKHANIKI MARK	发明人	VEDYASHKIN ANATOLIJ S,SU
分类号	E21C41/18	主分类号	E21C41/18
代理机构		代理人
主权项
地址

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