Spiral tube mfg. device,申请号IT19810021331-传众专利搜索

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法人/股东/高管

发明名称	Spiral tube mfg. device
摘要
申请公布号	IT1137221(B)	申请公布日期	1986.09.03
申请号	IT19810021331	申请日期	1981.04.22
申请人	NIPPON STEEL CORP.	发明人	YOSHITO TSUYAMA;YASUMI SHIMAZAKI;KAZUTOSHI KAKITA;TOSHIO HIROKAWA
分类号	B21C37/12;(IPC1-7):B21H/	主分类号	B21C37/12
代理机构		代理人
主权项
地址

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