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发明名称
METHOD FOR COAL EXTRACTION IN BREAKAGE FACE
摘要
申请公布号
RU1789689(C)
申请公布日期
1993.01.23
申请号
SU19904823305
申请日期
1990.05.28
申请人
INST GORNOGO DELA AN KAZAKHSK
发明人
MOLDABEKOV MARAT Z,SU;SHMAKOV VLADIMIR I,SU;POMASHEV OPAL P,SU;SYZDYKOV MAKSAT M,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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