SHIELD FOR TUNNELING IN WEAK ROCK,申请号SU19864165097-传众专利搜索

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发明名称	SHIELD FOR TUNNELING IN WEAK ROCK
摘要
申请公布号	SU1541389(A1)	申请公布日期	1990.02.07
申请号	SU19864165097	申请日期	1986.12.23
申请人	VNII TRANSPORT STROITELSTVU	发明人	AUERBAKH VIKTOR M,SU;SAVRANSKIJ BORIS V,SU
分类号	E21D9/04;E21D9/06	主分类号	E21D9/04
代理机构		代理人
主权项
地址

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