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经营范围
发明名称
Flow meter with conical spring restriction
摘要
申请公布号
US2850897(A)
申请公布日期
1958.09.09
申请号
US19550517852
申请日期
1955.06.24
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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