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发明名称
Improvements in or relating to boring tools
摘要
申请公布号
GB375592(A)
申请公布日期
1932.06.30
申请号
GB19310021896
申请日期
1931.07.31
申请人
THE CONSOLIDATED PNEUMATIC TOOL COMPANY LIMITED;TOM SEAMAN
发明人
分类号
E21B10/44
主分类号
E21B10/44
代理机构
代理人
主权项
地址
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