Pulse frequency modulation,申请号US19440531593-传众专利搜索

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发明名称	Pulse frequency modulation
摘要
申请公布号	US2438950(A)	申请公布日期	1948.04.06
申请号	US19440531593	申请日期	1944.04.18
申请人	SMITH JR CARL HARRISON	发明人	JR. CARL HARRISON SMITH,
分类号	H03K7/06	主分类号	H03K7/06
代理机构		代理人
主权项
地址

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