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经营范围
发明名称
Drehbohrer.
摘要
申请公布号
CH299297(A)
申请公布日期
1954.06.15
申请号
CHD299297
申请日期
1951.09.14
申请人
KANDLE,CHARLES WILLIAM
发明人
WILLIAM KANDLE,CHARLES
分类号
E21B10/44
主分类号
E21B10/44
代理机构
代理人
主权项
地址
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