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发明名称
Process of producing quaternary ammonium bases
摘要
申请公布号
US2173069(A)
申请公布日期
1939.09.12
申请号
US19370165488
申请日期
1937.09.24
申请人
I. G. FARBENINDUSTRIE AKTIENGESELLSCHAFT
发明人
ULRICH HEINRICH;PLOETZ ERNST
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