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发明名称
Bar mill
摘要
申请公布号
US1900032(A)
申请公布日期
1933.03.07
申请号
US19300491217
申请日期
1930.10.25
申请人
WARREN WORTHINGTON
发明人
WORTHINGTON WARREN
分类号
B21B13/00;B21B27/02
主分类号
B21B13/00
代理机构
代理人
主权项
地址
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