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发明名称
APARELHO E PROCESSO PARA PRODUCAO DE NEGRO DE FUMO COM ALTA ATIVIDADE DE SUPERFICIE
摘要
申请公布号
BR8903830(A)
申请公布日期
1991.03.19
申请号
BR1989PI03830
申请日期
1989.07.31
申请人
COLUMBIAN CHEMICALS COMPANY
发明人
JAMES M. WATSON;WILLIAM ROSS JONES, JR.
分类号
C09C1/48;C09C1/50;(IPC1-7):C09C1/48
主分类号
C09C1/48
代理机构
代理人
主权项
地址
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