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发明名称
Collet
摘要
申请公布号
US2885211(A)
申请公布日期
1959.05.05
申请号
US19580733736
申请日期
1958.05.07
申请人
SIMA GEORGE A
发明人
SIMA GEORGE A.
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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