Wave signaling system,申请号US19350039283-传众专利搜索

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发明名称	Wave signaling system
摘要
申请公布号	US2122653(A)	申请公布日期	1938.07.05
申请号	US19350039283	申请日期	1935.09.05
申请人	THE STROMBERG-CARLSON TELEPHONE MANUFACTURING COMPANY	发明人	LEVY MAURICE L.
分类号	H03H7/01	主分类号	H03H7/01
代理机构		代理人
主权项
地址

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