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发明名称
PROCESS AND INSTALLATION FOR MAKING MINING BORE HOLE TIMBERING
摘要
申请公布号
RO96562(B1)
申请公布日期
1989.04.01
申请号
RO19860124185
申请日期
1986.07.17
申请人
TRIF CONSTANTIN;DRAGOS MARIA;GUGA SEVERIN;COLTISOR GEORGE
发明人
TRIF CONSTANTIN;DRAGOS MARIA;GUGA SEVERIN;COLTISOR GEORGE
分类号
E21D1/06
主分类号
E21D1/06
代理机构
代理人
主权项
地址
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