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发明名称
Process of making phenolic resins direct from tar acid oils
摘要
申请公布号
US2289478(A)
申请公布日期
1942.07.14
申请号
US19410387447
申请日期
1941.04.08
申请人
JONES & LAUGHLIN STEEL CORPORATION
发明人
BROWN WALTER T.
分类号
C08G16/02
主分类号
C08G16/02
代理机构
代理人
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