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发明名称
Collet
摘要
申请公布号
US2545628(A)
申请公布日期
1951.03.20
申请号
US19470720957
申请日期
1947.01.09
申请人
HARDINGE BROTHERS, INC.
发明人
O'CONNELL JAMES R.
分类号
B23B31/20
主分类号
B23B31/20
代理机构
代理人
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地址
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