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经营范围
发明名称
UN PROCEDIMIENTO PARA LA FUSIoN DE MINERALES DE HIERRO MEDIANTE CARBONES DE MALA CALIDAD
摘要
申请公布号
ES179997(A1)
申请公布日期
1947.11.16
申请号
ES19970001799
申请日期
1947.10.04
申请人
GESELLSCHAFT DER LUDW. VON ROLLS'CHEN EISENWERKE,A. G.
发明人
分类号
(IPC1-7):C22
主分类号
(IPC1-7):C22
代理机构
代理人
主权项
地址
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