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经营范围
发明名称
Coated chromium dioxide particles
摘要
申请公布号
US4661408(A)
申请公布日期
1987.04.28
申请号
US19860841107
申请日期
1986.03.18
申请人
E.I. DU PONT DE NEMOURS AND COMPANY
发明人
LAU, HON-PENG P.;YANG, ESTHER K.;JACOBSON, HOWARD W.
分类号
H01F1/11;B01D35/06;B03C1/00;B03C1/01;C01G37/00;G01N33/543;(IPC1-7):B32B5/16
主分类号
H01F1/11
代理机构
代理人
主权项
地址
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