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经营范围
发明名称
Removing arsenic from ores
摘要
申请公布号
US1790088(A)
申请公布日期
1931.01.27
申请号
US19260153457
申请日期
1926.12.08
申请人
ELECTRO METALLURGICAL COMPANY
发明人
BRENNAN JOSEPH H.
分类号
C22B34/36
主分类号
C22B34/36
代理机构
代理人
主权项
地址
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