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发明名称
UN PROCEDIMEINTO PARA LA OBTECIoN DIRECTA DE UN METAL A PARTIR DE SU SULFURO
摘要
申请公布号
ES214811(A1)
申请公布日期
1954.07.16
申请号
ES19110002148
申请日期
1954.04.17
申请人
SESAM SA
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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