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经营范围
发明名称
Improving to color of petroleum resins
摘要
申请公布号
GB835788(A)
申请公布日期
1960.05.25
申请号
GB19570010736
申请日期
1957.04.02
申请人
ESSO RESEARCH AND PETROLEUM COMPANY
发明人
分类号
C08F240/00
主分类号
C08F240/00
代理机构
代理人
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