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发明名称
Production of lubricating oils
摘要
申请公布号
US2318625(A)
申请公布日期
1943.05.11
申请号
US19370167554
申请日期
1937.10.06
申请人
MATHIAS PIER;FRIEDRICH CHRISTMANN
发明人
PIER MATHIAS;CHRISTMANN FRIEDRICH
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主分类号
代理机构
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