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发明名称
Improvements in and relating to the extrusion of metal articles
摘要
申请公布号
GB524189(A)
申请公布日期
1940.07.31
申请号
GB19390011336
申请日期
1939.04.14
申请人
HIGH DUTY ALLOYS LIMITED;JOHN AHERNE HERON
发明人
分类号
B21C25/08
主分类号
B21C25/08
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代理人
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