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发明名称
Silicon steel and method of making the same
摘要
申请公布号
US1932307(A)
申请公布日期
1933.10.24
申请号
US19320632917
申请日期
1932.09.13
申请人
FREELAND EDWARD M
发明人
FREELAND EDWARD M.
分类号
C21D8/12
主分类号
C21D8/12
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