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发明名称
Rolling mill
摘要
申请公布号
US1891579(A)
申请公布日期
1932.12.20
申请号
US19300438098
申请日期
1930.03.22
申请人
TREADWELL ENGINEERING COMPANY
发明人
SCHRECK HANS L.
分类号
B21B13/06
主分类号
B21B13/06
代理机构
代理人
主权项
地址
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