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发明名称
Carpet sweeper window
摘要
申请公布号
US2208516(A)
申请公布日期
1940.07.16
申请号
US19390265379
申请日期
1939.04.01
申请人
PORTER STEEL SPECIALTIES
发明人
PARRISH CARL C.
分类号
A47L11/33
主分类号
A47L11/33
代理机构
代理人
主权项
地址
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