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发明名称
ROCK DRILL
摘要
申请公布号
US4113037(A)
申请公布日期
1978.09.12
申请号
US19760749034
申请日期
1976.12.09
申请人
ROBERT BOSCH GMBH
发明人
WANNER, KARL;REIBETANZ, WILBERT
分类号
B23B51/04;E21B10/38;E21B10/40;E21B17/00;(IPC1-7):E21B21/00
主分类号
B23B51/04
代理机构
代理人
主权项
地址
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