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经营范围
发明名称
Improvements in and relating to rotary boring machines
摘要
申请公布号
GB686185(A)
申请公布日期
1953.01.21
申请号
GB19500005294
申请日期
1950.03.02
申请人
ADOLF MEUTSCH
发明人
分类号
E21B6/00
主分类号
E21B6/00
代理机构
代理人
主权项
地址
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