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发明名称
APARELHO E PROCESSO PARA PRODUCAO DE NEGRO DE FUMO
摘要
申请公布号
BR9000635(A)
申请公布日期
1991.01.15
申请号
BR1990PI00635
申请日期
1990.02.13
申请人
COLUMBIAN CHEMICALS CO.
发明人
GLENN OLLIE WYATT
分类号
C09C1/50;(IPC1-7):C09C1/48
主分类号
C09C1/50
代理机构
代理人
主权项
地址
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