METHOD OF FORMING RINGS,申请号GB19770041184-传众专利搜索

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发明名称	METHOD OF FORMING RINGS
摘要
申请公布号	GB1585279(A)	申请公布日期	1981.02.25
申请号	GB19770041184	申请日期	1977.10.04
申请人	SPISAK E G	发明人
分类号	B21D53/18;(IPC1-7):B21D53/16	主分类号	B21D53/18
代理机构		代理人
主权项
地址

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