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发明名称
Improvements in milling
摘要
申请公布号
GB9522809(D0)
申请公布日期
1996.01.10
申请号
GB19950022809
申请日期
1995.11.07
申请人
SUSMAN, HECTOR F A;STEWART, KENNETH R
发明人
分类号
E21B7/06;E21B29/06
主分类号
E21B7/06
代理机构
代理人
主权项
地址
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