Válvula de doble compuerta de contactos esféricos, perfeccionada,申请号ES19690000319U-传众专利搜索

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发明名称	Válvula de doble compuerta de contactos esféricos, perfeccionada
摘要
申请公布号	ES31969(Y)	申请公布日期	1953.03.01
申请号	ES19690000319U	申请日期	1952.07.14
申请人	VIRGILIO JONCREU, EMILIO	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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