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发明名称
Flow meter with cylindrical spring restriction
摘要
申请公布号
US2979947(A)
申请公布日期
1961.04.18
申请号
US19580708933
申请日期
1958.01.14
申请人
BELL & GOSSETT COMPANY
发明人
MAIN LEO E.;PIPER JACK R.;SMITH LAWRENCE J.
分类号
G01F1/28
主分类号
G01F1/28
代理机构
代理人
主权项
地址
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