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经营范围
发明名称
Carpet sweeper
摘要
申请公布号
US2184623(A)
申请公布日期
1939.12.26
申请号
US19370180693
申请日期
1937.12.20
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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