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发明名称
摘要
申请公布号
FR2050048(A5)
申请公布日期
1971.03.26
申请号
FR19700020855
申请日期
1970.06.05
申请人
NIPPON YAKIN KOGYO CY LT
发明人
分类号
C22B23/02;(IPC1-7):22B23/00;22C39/00
主分类号
C22B23/02
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