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经营范围
发明名称
Suction cleaner
摘要
申请公布号
US2140143(A)
申请公布日期
1938.12.13
申请号
US19330704624
申请日期
1933.12.30
申请人
THE HOOVER COMPANY
发明人
SELLERS WILLIAM D.;ELLYN GLEN;BABCOCK EARL
分类号
A47L5/32;A47L9/28
主分类号
A47L5/32
代理机构
代理人
主权项
地址
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