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发明名称
SPREADER CRIBBING FOR REINFORCEMENT OF THE MINE WORKS
摘要
申请公布号
CS203770(B1)
申请公布日期
1981.03.31
申请号
CS19790002693
申请日期
1979.04.20
申请人
CHOVANEC,JIRI,CS;KOLAR,JOSEF,CS;LIBAR,MIROSLAV,CS;NAVRAT,BOHUSLAV,CS
发明人
CHOVANEC,JIRI,CS;KOLAR,JOSEF,CS;LIBAR,MIROSLAV,CS;NAVRAT,BOHUSLAV,CS
分类号
E21D15/48;(IPC1-7):E21D15/48
主分类号
E21D15/48
代理机构
代理人
主权项
地址
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