UN METODO PARA FORMAR UN TUBO CON COSTURA HELICOIDAL DE DO- BLE PARED.,申请号ES19080004459-传众专利搜索

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发明名称	UN METODO PARA FORMAR UN TUBO CON COSTURA HELICOIDAL DE DO- BLE PARED.
摘要
申请公布号	ES445908(A3)	申请公布日期	1977.08.16
申请号	ES19080004459	申请日期	1976.03.09
申请人	PACIFIC ROLLER DIE CO., INC.	发明人
分类号	B21C;(IPC1-7):21C/	主分类号	B21C
代理机构		代理人
主权项
地址

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