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经营范围
发明名称
PERFECCIONAMIENTOS EN LOS ENCOFRADOS PARA MINAS.
摘要
申请公布号
ES189492(A1)
申请公布日期
1950.04.01
申请号
ES19920001894
申请日期
1949.08.20
申请人
BOCHUMER EISENHUETTE HEINTZMANN & CO.
发明人
分类号
(IPC1-7):E21
主分类号
(IPC1-7):E21
代理机构
代理人
主权项
地址
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