Telephone subscriber's set illumination,申请号US19460692463-传众专利搜索

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发明名称	Telephone subscriber's set illumination
摘要
申请公布号	US2455816(A)	申请公布日期	1948.12.07
申请号	US19460692463	申请日期	1946.08.23
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	SHANN OSCAR A.
分类号	H04M19/04	主分类号	H04M19/04
代理机构		代理人
主权项
地址

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