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发明名称
Shankless bit holder and clamp
摘要
申请公布号
US2150561(A)
申请公布日期
1939.03.14
申请号
US19380195472
申请日期
1938.03.12
申请人
THE O. K. TOOL COMPANY, INC.
发明人
REANEY ERNEST
分类号
B23B27/16
主分类号
B23B27/16
代理机构
代理人
主权项
地址
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