TDM AND FDM TELEPHONE COMMUNICATION,申请号US19750595100-传众专利搜索

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发明名称	TDM AND FDM TELEPHONE COMMUNICATION
摘要
申请公布号	US4013840(A)	申请公布日期	1977.03.22
申请号	US19750595100	申请日期	1975.07.11
申请人	TELEPLEX, INC.	发明人	ANDERSON, SCOTT K.
分类号	H03L7/199;H04J4/00;H04Q11/00;(IPC1-7):H04J1/10	主分类号	H03L7/199
代理机构		代理人
主权项
地址

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