Electromechanical wave filters,申请号GB19400003872-传众专利搜索

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发明名称	Electromechanical wave filters
摘要
申请公布号	GB540171(A)	申请公布日期	1941.10.08
申请号	GB19400003872	申请日期	1940.03.01
申请人	STANDARD TELEPHONES AND CABLES LIMITED	发明人
分类号	H03H9/50	主分类号	H03H9/50
代理机构		代理人
主权项
地址

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