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发明名称
PROCESSO APERFEICOADO DE HIDROFOBIZACAO DE VERMICULITA EXPANDIDA
摘要
申请公布号
BR9004025(A)
申请公布日期
1992.02.25
申请号
BR1990PI04025
申请日期
1990.08.08
申请人
JADER MARTINS
发明人
JADER MARTINS
分类号
C01B33/20;C02F1/40;(IPC1-7):C01B33/20
主分类号
C01B33/20
代理机构
代理人
主权项
地址
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