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发明名称
摘要
申请公布号
FR2189140(B1)
申请公布日期
1977.02.18
申请号
FR19730023039
申请日期
1973.06.19
申请人
VAILLANT K G JOH
发明人
分类号
B21D11/06;B21D53/08;(IPC1-7):B21D11/16;F24H1/16
主分类号
B21D11/06
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