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发明名称
Art of producing lubricants
摘要
申请公布号
US2246312(A)
申请公布日期
1941.06.17
申请号
US19380237742
申请日期
1938.10.29
申请人
STANDARD OIL DEVELOPMENT COMPANY
发明人
LIEBER EUGENE
分类号
主分类号
代理机构
代理人
主权项
地址
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