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发明名称
SUCTION CLEANERS
摘要
申请公布号
CA549663(A)
申请公布日期
1957.12.03
申请号
CAD549663
申请日期
申请人
THE HOOVER COMPANY
发明人
WARREN A. HUMPHREY
分类号
主分类号
代理机构
代理人
主权项
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