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经营范围
发明名称
ELECTROHYDRODYNAMIC SPARK TRANSDUCER FOR GENERATION OF SEISMIC WAVE IN BORE-HOLES
摘要
申请公布号
PL138862(B1)
申请公布日期
1986.11.29
申请号
PL19820239985
申请日期
1982.12.30
申请人
发明人
分类号
G01V;G01V1/157;(IPC1-7):G01V1/157
主分类号
G01V
代理机构
代理人
主权项
地址
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