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发明名称
DEVICE FOR CONTROLLING JUNCTION ROOF SUPPORT
摘要
申请公布号
SU1379462(A1)
申请公布日期
1988.03.07
申请号
SU19864049207
申请日期
1986.04.03
申请人
SHAKHTA "YUN-YAGA" PROIZVODSTVENNOGO OBEDINENIYA PO DOBYCHE UGLYA "VORKUTAUGOL"
发明人
STROYAKOVSKIJ LEV M,SU;STEBELSKIJ VLADIMIR M,SU
分类号
E21D23/16
主分类号
E21D23/16
代理机构
代理人
主权项
地址
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