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发明名称
摘要
申请公布号	FR2242171(B1)	申请公布日期	1978.05.12
申请号	FR19740026552	申请日期	1974.07.31
申请人	LEIFELD ET CO	发明人
分类号	B21D53/30;B21H1/10;(IPC1-7):21D53/30	主分类号	B21D53/30
代理机构		代理人
主权项
地址

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