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经营范围
发明名称
Method of flattening end portions of a bar
摘要
申请公布号
US2141576(A)
申请公布日期
1938.12.27
申请号
US19360074128
申请日期
1936.04.13
申请人
POOR & COMPANY
发明人
WARR HAROLD G.;MCLAUGHLIN RICHARD A.
分类号
B21K23/00
主分类号
B21K23/00
代理机构
代理人
主权项
地址
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