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发明名称
Improvements in drill chucks
摘要
申请公布号
GB688429(A)
申请公布日期
1953.03.04
申请号
GB19500030683
申请日期
1950.12.15
申请人
OUTILLAGE VAL D'OR
发明人
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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