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经营范围
发明名称
HYDRAULIC DRILLING DEVICE
摘要
申请公布号
ZA7702941(B)
申请公布日期
1978.04.26
申请号
ZA19770002941
申请日期
1977.05.17
申请人
KLEMM BOHRTECHNIK SPEZIALUNTERNEHMEN
发明人
KLEMM G
分类号
E21B;E21C
主分类号
E21B
代理机构
代理人
主权项
地址
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