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经营范围
发明名称
UN PROCEDIMIENTO PARA LA PRODUCCION EN NEGRO DE HUMO
摘要
申请公布号
ES274246(A3)
申请公布日期
1962.07.01
申请号
ES19460002742
申请日期
1962.02.02
申请人
CABOT CORPORATION
发明人
分类号
(IPC1-7):C09
主分类号
(IPC1-7):C09
代理机构
代理人
主权项
地址
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