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经营范围
发明名称
Improvements in or relating to novel lubricating compositions
摘要
申请公布号
GB589923(A)
申请公布日期
1947.07.03
申请号
GB19450003443
申请日期
1945.02.12
申请人
E. I. DU PONT DE NEMOURS AND COMPANY;WILLIAM EDWARD HANFORD
发明人
分类号
主分类号
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