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发明名称
METHOD OF DETERMINING TIGHTNESS OF POWERED SUPPORT HYDRAULIC PROPS
摘要
申请公布号
SU1666747(A1)
申请公布日期
1991.07.30
申请号
SU19894700687
申请日期
1989.06.05
申请人
VNII GORNOJ GEOMEKHANIKI MARK
发明人
BARANOV SERGEJ G,SU;BIRZHAKOV VLADIMIR V,SU;STEPANENKO OLEG T,SU;KOVALEV VLADIMIR N,SU;YALYSHEV EMRULLA I,SU;TOMBERG ELMAR I,SU;TULIS YURIJ V,SU;POLYAKOV SERGEJ V,SU
分类号
E21D15/46;E21D15/44
主分类号
E21D15/46
代理机构
代理人
主权项
地址
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