Line protecting and message transmitting system,申请号US19260083266-传众专利搜索

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发明名称	Line protecting and message transmitting system
摘要
申请公布号	US1865952(A)	申请公布日期	1932.07.05
申请号	US19260083266	申请日期	1926.01.23
申请人	RADIO PATENTS CORPORATION	发明人	PFIFFNER EMIL
分类号	H04B3/56	主分类号	H04B3/56
代理机构		代理人
主权项
地址

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