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发明名称
Self-tightening chuck
摘要
申请公布号
US2207230(A)
申请公布日期
1940.07.09
申请号
US19380218111
申请日期
1938.07.08
申请人
THE JACOBS MANUFACTURING COMPANY
发明人
STONER ARTHUR MERRICK
分类号
B23B31/12
主分类号
B23B31/12
代理机构
代理人
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地址
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