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发明名称
Dust mop cleaner
摘要
申请公布号
US2724856(A)
申请公布日期
1955.11.29
申请号
US19520270204
申请日期
1952.02.06
申请人
CONKEY CHARLES C
发明人
CONKEY CHARLES C.
分类号
A47L13/502
主分类号
A47L13/502
代理机构
代理人
主权项
地址
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