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发明名称
Perfectionnements aux fours pour le traitement calorifique des métaux
摘要
申请公布号
FR701237(A)
申请公布日期
1931.03.13
申请号
FRD701237
申请日期
1930.08.27
申请人
HEVI DUTY ELECTRIC COMPANY
发明人
分类号
C21D11/00
主分类号
C21D11/00
代理机构
代理人
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