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发明名称
Improvements relating to the production of cup-shaped hollow bodies from metal billets
摘要
申请公布号
GB510001(A)
申请公布日期
1939.07.25
申请号
GB19390010107
申请日期
1939.03.31
申请人
STEWARTS AND LLOYDS LIMITED
发明人
分类号
B21C23/03
主分类号
B21C23/03
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代理人
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