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经营范围
发明名称
Process of purifying or refining non-ferrous metals and alloys
摘要
申请公布号
GB352671(A)
申请公布日期
1931.07.16
申请号
GB19300017107
申请日期
1930.06.04
申请人
DAVID RONALD TULLIS;PERCY OAKLEY
发明人
分类号
C22B9/10
主分类号
C22B9/10
代理机构
代理人
主权项
地址
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