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发明名称
DESULFURIZING AGENT COMPOSITION FOR SAVING B/C OIL
摘要
申请公布号
KR1019900003892(B1)
申请公布日期
1990.06.04
申请号
KR1019870004893
申请日期
1987.05.18
申请人
发明人
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主分类号
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