,申请号BG19750030217-传众专利搜索

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发明名称
摘要
申请公布号	BG22480(A1)	申请公布日期	1977.04.20
申请号	BG19750030217	申请日期	1975.06.07
申请人		发明人
分类号	B21D51/00;(IPC1-7):B21D51/00	主分类号	B21D51/00
代理机构		代理人
主权项
地址

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