Method for protecting information by using Dual Tone Multi Frequency tone,申请号KR20050076945-传众专利搜索

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发明名称	Method for protecting information by using Dual Tone Multi Frequency tone
摘要
申请公布号	KR20070022939(A)	申请公布日期	2007.02.28
申请号	KR20050076945	申请日期	2005.08.22
申请人		发明人
分类号	H04Q7/20	主分类号	H04Q7/20
代理机构		代理人
主权项
地址

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