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发明名称
Conversion arrangement for vacuum cleaners
摘要
申请公布号
US2487443(A)
申请公布日期
1949.11.08
申请号
US19430490525
申请日期
1943.06.11
申请人
EUREKA WILLIAMS CORPORATION
发明人
HOUGH EARL B.
分类号
A47L5/32
主分类号
A47L5/32
代理机构
代理人
主权项
地址
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