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经营范围
发明名称
Treatment of chromium ores
摘要
申请公布号
GB533377(A)
申请公布日期
1941.02.12
申请号
GB19390024805
申请日期
1939.08.29
申请人
PITTSBURGH PLATE GLASS COMPANY
发明人
分类号
C22B1/08
主分类号
C22B1/08
代理机构
代理人
主权项
地址
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