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经营范围
发明名称
Absorbent scouring and polishing body
摘要
申请公布号
US2268403(A)
申请公布日期
1941.12.30
申请号
US19410410179
申请日期
1941.09.09
申请人
KINGMAN RUSSELL B
发明人
KINGMAN RUSSELL B.
分类号
B24D3/32
主分类号
B24D3/32
代理机构
代理人
主权项
地址
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