MANUFACTURE OF SEAMLESS HOLLOW EXTRUDED MATERIAL WHOSE UNEVEN THICKNESS IS DECREASED,申请号JP19890119198-传众专利搜索

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发明名称	MANUFACTURE OF SEAMLESS HOLLOW EXTRUDED MATERIAL WHOSE UNEVEN THICKNESS IS DECREASED
摘要
申请公布号	JPH02299716(A)	申请公布日期	1990.12.12
申请号	JP19890119198	申请日期	1989.05.12
申请人	SHOWA ALUM CORP	发明人	MURASE ISAO;ONEDA NOBORU;MAEHARA HISASHI
分类号	B21C23/08;B21C29/00	主分类号	B21C23/08
代理机构		代理人
主权项
地址

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