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经营范围
发明名称
Fluid actuated electric circuit control for suction cleaners
摘要
申请公布号
US2534400(A)
申请公布日期
1950.12.19
申请号
US19440521769
申请日期
1944.02.10
申请人
THE HOOVER COMPANY
发明人
BIELENBERG RAYMOND G.
分类号
A47L5/30;A47L9/28;H01H35/32
主分类号
A47L5/30
代理机构
代理人
主权项
地址
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