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发明名称
A process for improving the properties of iron alloy castings
摘要
申请公布号
GB577133(A)
申请公布日期
1946.05.07
申请号
GB19400006701
申请日期
1940.04.12
申请人
WILLIAM HERBERT HATFIELD;JOSEPH FENWICK BRIDGE
发明人
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主分类号
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