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发明名称
Magnetic broom
摘要
申请公布号
US3377641(A)
申请公布日期
1968.04.16
申请号
US19650451423
申请日期
1965.04.28
申请人
ROBERT J. MCGREGOR
发明人
MCGREGOR ROBERT J.
分类号
A47L13/41
主分类号
A47L13/41
代理机构
代理人
主权项
地址
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