METHODS OF SHAPING RING BLANKS,申请号GB19750043264-传众专利搜索

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发明名称	METHODS OF SHAPING RING BLANKS
摘要
申请公布号	GB1519835(A)	申请公布日期	1978.08.02
申请号	GB19750043264	申请日期	1975.10.22
申请人	LENINGRAD POLITEKHNI INST IM MI KALININA	发明人
分类号	B21H1/12;(IPC1-7):B21H1/12	主分类号	B21H1/12
代理机构		代理人
主权项
地址

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