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发明名称
METODO DE TRATAMENTO DE MATERIAL CONTENDO FOSFATO,PARA REDUCAO DO PROBLEMA DE EXPANSAO DA ARGILA
摘要
申请公布号
BR7700672(A)
申请公布日期
1977.12.06
申请号
BR19770000672
申请日期
1977.02.02
申请人
PETROCHERICALS CO INC
发明人
RICE H;WILKINS R
分类号
C01B25/01;C01B25/22;F17D1/16;(IPC1-7):C01B25/01
主分类号
C01B25/01
代理机构
代理人
主权项
地址
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