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经营范围
发明名称
Improvements in the preparation of etherified rydroxy nitroanilines
摘要
申请公布号
GB597835(A)
申请公布日期
1948.02.04
申请号
GB19450020996
申请日期
1945.08.17
申请人
N. V. POLAK & SCHWARZ'S ESSENCEFABRIEKEN
发明人
分类号
主分类号
代理机构
代理人
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