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发明名称
Rod reducing apparatus
摘要
申请公布号
US1929987(A)
申请公布日期
1933.10.10
申请号
US19300459879
申请日期
1930.06.09
申请人
ALICE F. MEAD
发明人
MEAD CARL F.
分类号
B21B13/20
主分类号
B21B13/20
代理机构
代理人
主权项
地址
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