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发明名称
UN PROCEDIMIENTO PARA LA FABRICACION DE PIGMENTOS DE NEGRO DE HUMO DE ALTA CALIDAD
摘要
申请公布号
ES211701(A1)
申请公布日期
1954.03.16
申请号
ES19010002117
申请日期
1953.10.16
申请人
DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT, VORMALS ROESSLER
发明人
分类号
(IPC1-7):C09C1/52
主分类号
(IPC1-7):C09C1/52
代理机构
代理人
主权项
地址
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