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发明名称
Differential chuck
摘要
申请公布号
US1784908(A)
申请公布日期
1930.12.16
申请号
US19280281065
申请日期
1928.05.28
申请人
THE E. HORTON & SON COMPANY
发明人
REGAN JOSEPH C.
分类号
B23B31/163
主分类号
B23B31/163
代理机构
代理人
主权项
地址
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