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发明名称
Improved annular flow monitoring apparatus
摘要
申请公布号
AU728383(B2)
申请公布日期
2001.01.11
申请号
AU19970041240
申请日期
1997.09.02
申请人
EXPRO NORTH SEA LIMITED
发明人
JOSEPH CALDERHEAD ALLAN
分类号
G01F1/44;(IPC1-7):G01F1/44
主分类号
G01F1/44
代理机构
代理人
主权项
地址
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