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经营范围
发明名称
Improvements in and relating to annular drills or cutters
摘要
申请公布号
GB393361(A)
申请公布日期
1933.06.08
申请号
GB19320003432
申请日期
1932.02.05
申请人
JOSEPH HENRY PAYNE, JUNIOR
发明人
分类号
B23B51/05
主分类号
B23B51/05
代理机构
代理人
主权项
地址
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