TUBULAR ACOUSTIC PROJECTOR,申请号EP19860906902-传众专利搜索

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发明名称	TUBULAR ACOUSTIC PROJECTOR
摘要
申请公布号	EP0247126(B1)	申请公布日期	1990.05.02
申请号	EP19860906902	申请日期	1986.12.01
申请人	FERRANTI INTERNATIONAL PLC	发明人	WOOD, FRANK
分类号	B06B1/06	主分类号	B06B1/06
代理机构		代理人
主权项
地址

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