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发明名称
Chuck and centering arbor
摘要
申请公布号
US1897228(A)
申请公布日期
1933.02.14
申请号
US19310570669
申请日期
1931.10.23
申请人
THE HESS-BRIGHT MANUFACTURING COMPANY
发明人
BECKETT HARRY S.
分类号
B23B31/40
主分类号
B23B31/40
代理机构
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