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发明名称
Production of tubing
摘要
申请公布号
US2211742(A)
申请公布日期
1940.08.13
申请号
US19370145013
申请日期
1937.05.27
申请人
E.I. DU PONT DE NEMOURS & COMPANY
发明人
HALLIWELL WILLIAM H.
分类号
B29C47/80;B29C53/48
主分类号
B29C47/80
代理机构
代理人
主权项
地址
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