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发明名称
Improvements in apparatus for manufacturing tubular elements
摘要
申请公布号
GB778492(A)
申请公布日期
1957.07.10
申请号
GB19560004450
申请日期
1956.02.13
申请人
ANDRE HUET
发明人
分类号
B21C37/29
主分类号
B21C37/29
代理机构
代理人
主权项
地址
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