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发明名称
ELECTRODISCHARGE DRILLING.
摘要
申请公布号
GB2254280(A)
申请公布日期
1992.10.07
申请号
GB19910007118
申请日期
1991.04.05
申请人
* ROLLS-ROYCE PLC
发明人
KEITH CHARLES * MOLONEY
分类号
B23H9/14
主分类号
B23H9/14
代理机构
代理人
主权项
地址
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