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发明名称
Electrical steel and method of making the same
摘要
申请公布号
US2260397(A)
申请公布日期
1941.10.28
申请号
US19390275696
申请日期
1939.05.25
申请人
OTTE OTHO M
发明人
OTTE OTHO M.
分类号
B21B3/02
主分类号
B21B3/02
代理机构
代理人
主权项
地址
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