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经营范围
发明名称
GEOPHONE SPRING
摘要
申请公布号
EP0184231(B1)
申请公布日期
1992.01.22
申请号
EP19850201658
申请日期
1985.10.10
申请人
HALLIBURTON GEOPHYSICAL SERVICES, INC.
发明人
HAGEDOORN, LOURENS AREND;VITRINGA, FREDERICK ANTON
分类号
F16F1/32;G01V1/18
主分类号
F16F1/32
代理机构
代理人
主权项
地址
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