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发明名称
摘要
申请公布号
FR2253837(B3)
申请公布日期
1977.08.26
申请号
FR19740039756
申请日期
1974.12.05
申请人
INTERNAL STANDARD ELECTRIC CORP
发明人
分类号
C21D1/34;C21D1/74;C21D9/00;(IPC1-7):C21D9/00
主分类号
C21D1/34
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