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发明名称
摘要
申请公布号
FR2255388(B1)
申请公布日期
1977.11.10
申请号
FR19740042463
申请日期
1974.12.23
申请人
NISSHIN STEEL CY LTD
发明人
分类号
C22C38/40;(IPC1-7):22C38/58
主分类号
C22C38/40
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代理人
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