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经营范围
发明名称
AUTOMATIC DRILLING DEVICE
摘要
申请公布号
CA861718(A)
申请公布日期
1971.01.19
申请号
CAD861718
申请日期
申请人
CHARLES A. O'CONNOR
发明人
CHARLES A. O'CONNOR
分类号
主分类号
代理机构
代理人
主权项
地址
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