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发明名称
Process for refining mineral oils
摘要
申请公布号
US1974724(A)
申请公布日期
1934.09.25
申请号
US19310524753
申请日期
1931.03.23
申请人
SHELL DEVELOPMENT COMPANY
发明人
ROSENSTEIN LUDWIG
分类号
C10G21/20
主分类号
C10G21/20
代理机构
代理人
主权项
地址
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