Telephone line on-hold device,申请号IES930897-传众专利搜索

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发明名称	Telephone line on-hold device
摘要
申请公布号	IES930897(A2)	申请公布日期	1994.04.06
申请号	IES930897	申请日期	1993.11.24
申请人	INTERNATIONAL TRADE AND CLAIMS LIMITED	发明人	MARCO CESELINI
分类号	H04M1/68;(IPC1-7):H04M1/68	主分类号	H04M1/68
代理机构		代理人
主权项
地址

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