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发明名称
Iron oxide pigment
摘要
申请公布号
US2111727(A)
申请公布日期
1938.03.22
申请号
US19370123124
申请日期
1937.01.30
申请人
C. K. WILLIAMS & CO.
发明人
PLEWS GEORGE
分类号
C01G49/06
主分类号
C01G49/06
代理机构
代理人
主权项
地址
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