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发明名称
Manufacture of tubular elements
摘要
申请公布号
US3030902(A)
申请公布日期
1962.04.24
申请号
US19560594474
申请日期
1956.06.28
申请人
ANDRE HUET
发明人
HUET ANDRE
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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