Systèmes de signalisation à ondes porteuses,申请号FRD982995-传众专利搜索

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法人/股东/高管

发明名称	Systèmes de signalisation à ondes porteuses
摘要
申请公布号	FR982995(A)	申请公布日期	1951.06.18
申请号	FRD982995	申请日期	1947.12.30
申请人	INTERNATIONAL STANDARD ELECTRIC CORPORATION	发明人	WRIGHT FRANK CORAM;ALDRICK SYDNEY ERNEST
分类号	H04B1/74	主分类号	H04B1/74
代理机构		代理人
主权项
地址

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