Un tubo de aletas lisas y helicoidales,申请号ES19750000479U-传众专利搜索

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发明名称	Un tubo de aletas lisas y helicoidales
摘要
申请公布号	ES47975(Y)	申请公布日期	1955.12.16
申请号	ES19750000479U	申请日期	1955.05.07
申请人	AREND ESPOY, LUIS VON	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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