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发明名称
FREMGANGSMAATE FOR FRIGJOERING AV FASTSKILT ROER
摘要
申请公布号
NO921968(D0)
申请公布日期
1992.05.19
申请号
NO19920001968
申请日期
1992.05.19
申请人
BRITISH PETROLEUM COMPANY PLC, THE
发明人
BERN, PETER ANTHONY;BUSHNELL-WATSON, YVONNE MARGARET
分类号
C09K8/035;E21B31/03;(IPC1-7):E21B/
主分类号
C09K8/035
代理机构
代理人
主权项
地址
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