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发明名称
Process for producing ferric oxide compositions of polishing grade
摘要
申请公布号
US2653081(A)
申请公布日期
1953.09.22
申请号
US19480000802
申请日期
1948.01.06
申请人
C. K. WILLIAMS & CO.
发明人
STEPHENS ROBERT A.
分类号
C01G49/06;C09K3/14
主分类号
C01G49/06
代理机构
代理人
主权项
地址
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