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发明名称
Vorrichtung zur Untersuchung akustischer Eigenschaften von ein Bohrloch umgebenden Medien
摘要
申请公布号
AT239558(B)
申请公布日期
1965.04.12
申请号
AT19600007153
申请日期
1960.09.21
申请人
SCHLUMBERGER WELL SURVEYING CORPORATION
发明人
分类号
G01V1/50
主分类号
G01V1/50
代理机构
代理人
主权项
地址
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