WELDING METHOD AND SPIRAL STEEL PIPE PRODUCTION DEVICE,申请号JP19760152622-传众专利搜索

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发明名称	WELDING METHOD AND SPIRAL STEEL PIPE PRODUCTION DEVICE
摘要
申请公布号	JPS5376141(A)	申请公布日期	1978.07.06
申请号	JP19760152622	申请日期	1976.12.17
申请人	KUBOTA LTD	发明人	TAKAHARA SHIYUNJI
分类号	B21C37/12;B23K9/00;B23K9/032;B23K9/127	主分类号	B21C37/12
代理机构		代理人
主权项
地址

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