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经营范围
发明名称
DRILL CHUCK
摘要
申请公布号
GB1566855(A)
申请公布日期
1980.05.08
申请号
GB19780016971
申请日期
1978.04.28
申请人
ROEHM G
发明人
分类号
B23B31/07;B23B31/12;B23B31/173;(IPC1-7):B23B31/04
主分类号
B23B31/07
代理机构
代理人
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