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发明名称
Centrifugal chuck
摘要
申请公布号
US2431961(A)
申请公布日期
1947.12.02
申请号
US19440561032
申请日期
1944.10.30
申请人
PHILLIPS ERNEST B;NATHANIEL BERTHOFF
发明人
PHILLIPS ERNEST B.;BERTHOFF NATHANIEL
分类号
B23B31/14;B23B31/40
主分类号
B23B31/14
代理机构
代理人
主权项
地址
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