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发明名称
METHOD OF DETERMINATION OF ROCK STRENGTH
摘要
申请公布号
SU1700234(A1)
申请公布日期
1991.12.23
申请号
SU19894660332
申请日期
1989.03.07
申请人
VNI PK I PO OSUSHENIYU MESTOROZHDENIJ POLEZNYKH ISKOPAEMYKH, CüE|ôAóÓHÕM ×OPHÕM PA¬OTAM, PÔ¯HôÚHOö ×EOóO×ôô ô MAPKÛEö¯EPCKOMÔ ¯EóÔ
发明人
SIDELNIKOV MIKHAIL A,SU;FOMENKO KONSTANTIN I,SU;BUTYUGIN VYACHESLAV V,SU;BUTYUGINA TAMARA M,SU
分类号
E21C39/00
主分类号
E21C39/00
代理机构
代理人
主权项
地址
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