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发明名称
Improvements in apparatus for indicating the rate of flow of fluids
摘要
申请公布号
GB348562(A)
申请公布日期
1931.05.06
申请号
GB19300003993
申请日期
1930.02.06
申请人
JOHN LAWRENCE HODGSON;JOHN RAVEN RATCLIFF
发明人
分类号
G01F1/22
主分类号
G01F1/22
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