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发明名称
Edge rolling
摘要
申请公布号
US2184582(A)
申请公布日期
1939.12.26
申请号
US19370135803
申请日期
1937.04.08
申请人
NATIONAL TUBE COMPANY
发明人
COOK HOWARD D.
分类号
B21B13/06;B21B39/16
主分类号
B21B13/06
代理机构
代理人
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