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发明名称
VORRICHTUNG AN VORSCHUBEINRICHTUNGEN VON BOHRWAGEN ZU DEREN ROLLFAEHIGKEIT
摘要
申请公布号
DD285904(A7)
申请公布日期
1991.01.10
申请号
DD19880319054
申请日期
1988.08.18
申请人
SDAG WISMUT,DD
发明人
MEYER,BERND,DD;THEML,ACHIM,DD
分类号
E21B7/02;(IPC1-7):E21C11/02
主分类号
E21B7/02
代理机构
代理人
主权项
地址
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