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发明名称
Improvements in machines for grinding twist drills
摘要
申请公布号
GB1135251(A)
申请公布日期
1968.12.04
申请号
GB19660003497
申请日期
1966.01.26
申请人
THE SHEFFIELD TWIST DRILL & STEEL CO. LIMITED
发明人
BRAMHALL JOHN MICHAEL
分类号
B24B3/24
主分类号
B24B3/24
代理机构
代理人
主权项
地址
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