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发明名称
VERFAHREN UND GERAET ZUR BOHRLOCHVERMESSUNG MITTELS AKUSTISCHER SIGNALE
摘要
申请公布号
DE3234997(A1)
申请公布日期
1983.03.31
申请号
DE19823234997
申请日期
1982.09.22
申请人
HALLIBURTON CO.
发明人
MALLETT,A.J.
分类号
G01V1/46;(IPC1-7):G01V1/40
主分类号
G01V1/46
代理机构
代理人
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地址
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