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发明名称
Cleaning device
摘要
申请公布号
US1760614(A)
申请公布日期
1930.05.27
申请号
US19280297942
申请日期
1928.08.07
申请人
SAMUEL WEINTRAUB
发明人
WEINTRAUB SAMUEL
分类号
A47L13/44
主分类号
A47L13/44
代理机构
代理人
主权项
地址
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