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发明名称
MEJORAS INTRODUCIDAS EN EL OBJETO DE LA PATENTE PRINCIPAL NuMERO 142230
摘要
申请公布号
ES143189(A2)
申请公布日期
1937.04.01
申请号
ES19890001431
申请日期
1936.09.28
申请人
I. G. FARBENINDUSTRIE A.G.
发明人
分类号
(IPC1-7):D01H
主分类号
(IPC1-7):D01H
代理机构
代理人
主权项
地址
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