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发明名称
Pour point depressor
摘要
申请公布号
US1963918(A)
申请公布日期
1934.06.19
申请号
US19330678256
申请日期
1933.06.29
申请人
STANDARD OIL COMPANY
发明人
MACLAREN FREDERICK H.
分类号
主分类号
代理机构
代理人
主权项
地址
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