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发明名称
Emulsifying and treating agents
摘要
申请公布号
US2139276(A)
申请公布日期
1938.12.06
申请号
US19340743720
申请日期
1934.09.12
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
LENHER SAMUEL;JR. LUTHER B. ARNOLD,
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主分类号
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