MEJORAS EN LA CONSTRUCCIoN DE CAJAS ACuSTICAS ANTIRRESONANTES,申请号ES19900002317-传众专利搜索

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发明名称	MEJORAS EN LA CONSTRUCCIoN DE CAJAS ACuSTICAS ANTIRRESONANTES
摘要
申请公布号	ES231790(A3)	申请公布日期	1957.03.01
申请号	ES19900002317	申请日期	1956.10.31
申请人	LEGRAIN INDUSTRIAL, S.A.	发明人
分类号	(IPC1-7):G10	主分类号	(IPC1-7):G10
代理机构		代理人
主权项
地址

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