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经营范围
发明名称
Abrasive pad
摘要
申请公布号
US2102745(A)
申请公布日期
1937.12.21
申请号
US19360097540
申请日期
1936.08.24
申请人
READ MERWIN F
发明人
READ MERWIN F.
分类号
A47L13/286
主分类号
A47L13/286
代理机构
代理人
主权项
地址
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