Keying device for ultra-short-wave transmitters,申请号US19380241166-传众专利搜索

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发明名称	Keying device for ultra-short-wave transmitters
摘要
申请公布号	US2237661(A)	申请公布日期	1941.04.08
申请号	US19380241166	申请日期	1938.11.18
申请人	SIEMENS APPARATE UND MASCHINEN GESELLSCHAFT MIT BESCHRANKTER HAFTUNG	发明人	ERNST GERT
分类号	H03K3/78	主分类号	H03K3/78
代理机构		代理人
主权项
地址

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