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发明名称
摘要
申请公布号
NO760217(A)
申请公布日期
1976.07.28
申请号
NO19760000217
申请日期
1976.01.23
申请人
BP TRADING LIMITED
发明人
ARMSTRONG R J;COOK B S
分类号
G01B7/00;E21B7/04;E21B47/02;G01B7/30;G01C9/12;(IPC1-7):G01C/
主分类号
G01B7/00
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代理人
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