An improved resonance relay operating according to the ferraris principle,申请号GB19310024349-传众专利搜索

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发明名称	An improved resonance relay operating according to the ferraris principle
摘要
申请公布号	GB382981(A)	申请公布日期	1932.11.10
申请号	GB19310024349	申请日期	1931.08.29
申请人	LANDIS & GYR, S.A.	发明人
分类号	H01H51/32	主分类号	H01H51/32
代理机构		代理人
主权项
地址

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