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发明名称
Reverse air flow convertible household vacuum cleaner
摘要
申请公布号
US2642616(A)
申请公布日期
1953.06.23
申请号
US19490092012
申请日期
1949.05.07
申请人
BROWNE ARCHIE S
发明人
BROWNE ARCHIE S.
分类号
A47L5/26;A47L5/36
主分类号
A47L5/26
代理机构
代理人
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地址
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