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经营范围
发明名称
Improvements in silicon alloys
摘要
申请公布号
GB527579(A)
申请公布日期
1940.10.11
申请号
GB19390011490
申请日期
1939.04.15
申请人
ELECTRO METALLURGICAL COMPANY
发明人
分类号
C22C28/00
主分类号
C22C28/00
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代理人
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