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经营范围
发明名称
Drill chuck system with a hole for removing a broken drill bit
摘要
申请公布号
PL397778(A1)
申请公布日期
2012.07.16
申请号
PL20120397778
申请日期
2012.01.11
申请人
JOY MM DELAWARE,, INC.
发明人
O'NEILL MICHAEL L.
分类号
B23B47/32
主分类号
B23B47/32
代理机构
代理人
主权项
地址
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