METHOD OF AND APPARATUS FOR PRODUCING WELDED STEEL PIPE,申请号JP19760021520-传众专利搜索

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发明名称	METHOD OF AND APPARATUS FOR PRODUCING WELDED STEEL PIPE
摘要
申请公布号	JPS52103366(A)	申请公布日期	1977.08.30
申请号	JP19760021520	申请日期	1976.02.27
申请人		发明人
分类号	B21C37/08;B21D3/00;B21D3/14;B24B39/02	主分类号	B21C37/08
代理机构		代理人
主权项
地址

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