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经营范围
发明名称
MEJORAS INTRODUCIDAS EN EL TRATAMIENTO DE ESCOBILLAS DE CARBON
摘要
申请公布号
ES177638(A1)
申请公布日期
1947.06.01
申请号
ES19380001776
申请日期
1947.04.18
申请人
WESTINGHOUSE ELECTRIC CORPORATION
发明人
分类号
(IPC1-7):H01
主分类号
(IPC1-7):H01
代理机构
代理人
主权项
地址
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