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发明名称
Method of making pipe
摘要
申请公布号
US2086125(A)
申请公布日期
1937.07.06
申请号
US19350013323
申请日期
1935.03.27
申请人
WHEELING STEEL CORPORATION
发明人
EWING WYLIE B.
分类号
B21C37/08
主分类号
B21C37/08
代理机构
代理人
主权项
地址
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