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发明名称
Process for treating mineral oils
摘要
申请公布号
US2214444(A)
申请公布日期
1940.09.10
申请号
US19370128618
申请日期
1937.03.02
申请人
VARTERESSIAN KEGHAM A
发明人
VARTERESSIAN KEGHAM A.
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主分类号
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代理人
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