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发明名称
HYDRAULIC PROP OF MINE SUPPORT
摘要
申请公布号
SU1411494(A1)
申请公布日期
1988.07.23
申请号
SU19864117692
申请日期
1986.09.15
申请人
PODMOSKOVNYJ NI PK UGOLNYJ INSTITUT
发明人
SHVYRYAEV SERGEJ I,SU;PODKOLZIN ANATOLIJ A,SU;DUBOVSKIJ YURIJ P,SU;POLEJ LEONID S,SU;MIKHAJLOV IGOR F,SU;ZAIKIN EVGENIJ K,SU
分类号
E21D15/44
主分类号
E21D15/44
代理机构
代理人
主权项
地址
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