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发明名称
PERFECCIONAMIENTOS EN LA REFINACIoN DEL PLOMO EN PASTA O EN BARRAS.
摘要
申请公布号
ES115964(A1)
申请公布日期
1930.01.01
申请号
ES19640001159
申请日期
1929.12.09
申请人
WILLIAMS, GEORGE KENNETH
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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