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经营范围
发明名称
Suction cleaner
摘要
申请公布号
US2250279(A)
申请公布日期
1941.07.22
申请号
US19390275091
申请日期
1939.05.22
申请人
BIRTMAN ELECTRIC COMPANY
发明人
SPARKLIN CHARLES H.
分类号
A47L9/04
主分类号
A47L9/04
代理机构
代理人
主权项
地址
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