Устройство для повышения прочности металла по окружности болтовых отверстий рельсов методом наклепа,申请号SU19570586048-传众专利搜索

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发明名称	Устройство для повышения прочности металла по окружности болтовых отверстий рельсов методом наклепа
摘要
申请公布号	SU113601(A1)	申请公布日期	1957.11.30
申请号	SU19570586048	申请日期	1957.11.02
申请人	GOLYSHEV YA.A.	发明人	GOLYSHEV YA.A.
分类号	B24B39/02;C21D7/04	主分类号	B24B39/02
代理机构		代理人
主权项
地址

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