Improvement in the method of machining to produce tubings with longitudinal cut and a composite vanishing core element to be used in it,申请号IT1991RM00826-传众专利搜索

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发明名称	Improvement in the method of machining to produce tubings with longitudinal cut and a composite vanishing core element to be used in it
摘要
申请公布号	IT1250065(B)	申请公布日期	1995.03.30
申请号	IT1991RM00826	申请日期	1991.10.30
申请人	SALP S.P.A.	发明人	BENVENUTI OLINTO
分类号	B21C;(IPC1-7):B21C	主分类号	B21C
代理机构		代理人
主权项
地址

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