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发明名称
Self-centering chuck
摘要
申请公布号
US2215927(A)
申请公布日期
1940.09.24
申请号
US19380234018
申请日期
1938.10.08
申请人
NATIONAL TUBE COMPANY
发明人
HAYES LOREN A.;MAHLA WALTER T.
分类号
B23Q3/00
主分类号
B23Q3/00
代理机构
代理人
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