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发明名称
Die for bending angle bars
摘要
申请公布号
US1832210(A)
申请公布日期
1931.11.17
申请号
US19300420347
申请日期
1930.01.13
申请人
ALBERT HOSSFELD
发明人
HOSSFELD ALBERT
分类号
B21D7/022
主分类号
B21D7/022
代理机构
代理人
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