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发明名称
Flow meter
摘要
申请公布号
US1977498(A)
申请公布日期
1934.10.16
申请号
US19300485535
申请日期
1930.09.30
申请人
THE PERMUTIT COMPANY
发明人
STAEGEMANN EUGENE
分类号
G01F1/37;G01F1/52
主分类号
G01F1/37
代理机构
代理人
主权项
地址
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