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发明名称
Verfahren und Vorrichtung zum Perforieren von Bohrlochauskleidungen und Aufbrechen geologischer Formationen
摘要
申请公布号
DE951082(C)
申请公布日期
1956.10.25
申请号
DE1955M025888
申请日期
1955.01.25
申请人
HENRY HANS MOHAUPT
发明人
MOHAUPT HENRY HANS
分类号
E21B43/116
主分类号
E21B43/116
代理机构
代理人
主权项
地址
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