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经营范围
发明名称
Bohrhammer
摘要
申请公布号
DE1299265(B)
申请公布日期
1969.07.17
申请号
DE1967J034311
申请日期
1967.08.03
申请人
IMPEX-ESSEN GMBH
发明人
HORST BIERSACK,
分类号
E21B6/06
主分类号
E21B6/06
代理机构
代理人
主权项
地址
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