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经营范围
发明名称
Self-shaking dust mop
摘要
申请公布号
US2104614(A)
申请公布日期
1938.01.04
申请号
US19370129273
申请日期
1937.03.05
申请人
FINFROCK JOHN C
发明人
FINFROCK JOHN C.
分类号
A47L13/24
主分类号
A47L13/24
代理机构
代理人
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