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经营范围
发明名称
DOWNHOLE ELECTROMAGNETIC SEISMIC SOURCE.
摘要
申请公布号
EP0263148(A4)
申请公布日期
1988.07.27
申请号
EP19870902289
申请日期
1987.03.18
申请人
CHEVRON RESEARCH COMPANY
发明人
PAULSSON, BJORN, N., P.
分类号
G01V1/143;E21B23/01;G01V1/06;G01V1/155;G01V1/38;G01V1/40;G01V11/00
主分类号
G01V1/143
代理机构
代理人
主权项
地址
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