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发明名称
SUCTION CLEANER
摘要
申请公布号
CA397649(A)
申请公布日期
1941.07.01
申请号
CAD397649
申请日期
申请人
THE HOOVER COMPANY
发明人
VERNON E. CARLSON
分类号
主分类号
代理机构
代理人
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