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发明名称
MEASUREMENT OF ELECTRIC POTENTIAL
摘要
申请公布号
GB8723601(D0)
申请公布日期
1987.11.11
申请号
GB19870023601
申请日期
1987.10.08
申请人
BRITISH PETROLEUM CO PLC
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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