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发明名称
摘要
申请公布号	NL7014886(A)	申请公布日期	1971.04.27
申请号	NL19700014886	申请日期	1970.10.09
申请人		发明人
分类号	B21D51/44;B21D51/38;(IPC1-7):B21D51/38;B65D17/24	主分类号	B21D51/44
代理机构		代理人
主权项
地址

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