METHOD OF MANUFACTURING METALLIC TUBE WITH SPIRAL FIN.,申请号EP19880305081-传众专利搜索

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发明名称	METHOD OF MANUFACTURING METALLIC TUBE WITH SPIRAL FIN.
摘要
申请公布号	EP0294215(A3)	申请公布日期	1989.05.31
申请号	EP19880305081	申请日期	1988.06.03
申请人	SUMITOMO METAL INDUSTRIES, LTD.	发明人	KURODA, KOUICHI GEN. RES. LAB. OF SUMITOMO;HAYASHI, CHIHIRO GEN. RES. LAB. OF SUMITOMO;NAKASUJI, KAZUYUKI GEN. RES. LAB. OF SUMITOMO
分类号	B21C37/20;(IPC1-7):B21C37/20	主分类号	B21C37/20
代理机构		代理人
主权项
地址

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