MANUFACTURE OF SPRING SUPERIOR IN FATIGUE STRENGTH,申请号JP19910173320-传众专利搜索

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发明名称	MANUFACTURE OF SPRING SUPERIOR IN FATIGUE STRENGTH
摘要
申请公布号	JPH04371333(A)	申请公布日期	1992.12.24
申请号	JP19910173320	申请日期	1991.06.19
申请人	NIPPON STEEL CORP	发明人	TATEYAMA MICHIAKI;MIKI TAKESHI
分类号	B21F35/00;F16F1/02	主分类号	B21F35/00
代理机构		代理人
主权项
地址

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