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发明名称
METODO PERFECCIONADO PARA EL ACIDULADO DE LA PIEDRA DE FOS- FATO.
摘要
申请公布号
ES441305(A1)
申请公布日期
1977.03.16
申请号
ES19050004413
申请日期
1975.09.26
申请人
PENNZOIL COMPANY
发明人
分类号
C01B;(IPC1-7):01B/
主分类号
C01B
代理机构
代理人
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地址
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