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发明名称
UN PROCEDIMIENTO PARA LA OBTENCION DE UN MATERIAL ELECTRO- GRAFICO.
摘要
申请公布号
ES374301(A1)
申请公布日期
1971.12.16
申请号
ES19010003743
申请日期
1969.11.28
申请人
NEGRA INDUSTRIAL, S. A.
发明人
分类号
G03G;(IPC1-7):03G/
主分类号
G03G
代理机构
代理人
主权项
地址
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