METHOD OF AND APPARATUS FOR HARDENING ENDS OF COMBUSTION ENGINE VALVE SHANKS, IN PARTICULAR THOSE MADE OF HEAT RESISTING AUSTENITIC STEEL,申请号PL19850254439-传众专利搜索

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发明名称	METHOD OF AND APPARATUS FOR HARDENING ENDS OF COMBUSTION ENGINE VALVE SHANKS, IN PARTICULAR THOSE MADE OF HEAT RESISTING AUSTENITIC STEEL
摘要
申请公布号	PL150953(B1)	申请公布日期	1990.07.31
申请号	PL19850254439	申请日期	1985.07.08
申请人		发明人
分类号	B23K;B23P17/00;B23P23/00;(IPC1-7):B23P17/00	主分类号	B23K
代理机构		代理人
主权项
地址

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