Digit absorber for a telephone system,申请号US19550552828-传众专利搜索

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发明名称	Digit absorber for a telephone system
摘要
申请公布号	US2921982(A)	申请公布日期	1960.01.19
申请号	US19550552828	申请日期	1955.12.13
申请人	GENERAL TELEPHONE LABORATORIES, INCORPORATED	发明人	LOMAX CLARENCE E.
分类号	H04Q3/00	主分类号	H04Q3/00
代理机构		代理人
主权项
地址

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