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经营范围
发明名称
Improvements in the treatment of metals
摘要
申请公布号
GB716487(A)
申请公布日期
1954.10.06
申请号
GB19510004955
申请日期
1951.03.01
申请人
PERCY ALLAN CHARLESWORTH
发明人
分类号
C21D7/02
主分类号
C21D7/02
代理机构
代理人
主权项
地址
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