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经营范围
发明名称
Fluid flow indicator
摘要
申请公布号
US1888737(A)
申请公布日期
1932.11.22
申请号
US19310576321
申请日期
1931.11.20
申请人
THE AUTOCALL COMPANY
发明人
RICHMOND LOUIS E.
分类号
G01P13/00;H01H35/40;H01H36/00;H02H5/08
主分类号
G01P13/00
代理机构
代理人
主权项
地址
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