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发明名称
PROCESS FOR EXTRACTING AND REFINING RAW SULFUR FROM LOW GRADE IGNEOUS TYPE BRINGSTONE ORES
摘要
申请公布号
PH14528(A)
申请公布日期
1981.08.31
申请号
PH19610000258
申请日期
1981.07.03
申请人
LUCERO ANTONIO R;MANINGAT EDMUNDO B
发明人
CALUGCUCAN RAYMUNDO R
分类号
C01B17/00
主分类号
C01B17/00
代理机构
代理人
主权项
地址
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