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发明名称
Apparatus and process for forming helices from metal strips, rods, bars, tubes and the like
摘要
申请公布号
GB730675(A)
申请公布日期
1955.05.25
申请号
GB19520031736
申请日期
1952.12.15
申请人
THE CYRIL BATH COMPANY
发明人
分类号
B21D11/06
主分类号
B21D11/06
代理机构
代理人
主权项
地址
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