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发明名称
Collet
摘要
申请公布号
US2619357(A)
申请公布日期
1952.11.25
申请号
US19500140489
申请日期
1950.01.25
申请人
THE NEW BRITAIN MACHINE COMPANY
发明人
MONTGOMERY DONALD H.
分类号
B23B31/12
主分类号
B23B31/12
代理机构
代理人
主权项
地址
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