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发明名称
MEASURING ORIFICE
摘要
申请公布号
PL123886(B2)
申请公布日期
1982.12.31
申请号
PL19790220466
申请日期
1979.12.14
申请人
发明人
分类号
G01F1/42;G01P;(IPC1-7):G01F1/42
主分类号
G01F1/42
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代理人
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