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发明名称
EXTRACTIVE DISTILLATION OF LUBRICATING OIL STOCK
摘要
申请公布号
CA633232(A)
申请公布日期
1961.12.19
申请号
CAD633232
申请日期
申请人
SHELL OIL COMPANY
发明人
VLADIMIR ANASTASOFF
分类号
主分类号
代理机构
代理人
主权项
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