Telephone recording and reproducing device,申请号US19280279331-传众专利搜索

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发明名称	Telephone recording and reproducing device
摘要
申请公布号	US1794354(A)	申请公布日期	1931.03.03
申请号	US19280279331	申请日期	1928.05.21
申请人	AVERSA SANTO E	发明人	AVERSA SANTO E.
分类号	H04M1/65	主分类号	H04M1/65
代理机构		代理人
主权项
地址

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