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发明名称
METHOD AND EQUIPMENT FOR DIGITAL SUBSCRIBER LINE
摘要
申请公布号
JPH01196950(A)
申请公布日期
1989.08.08
申请号
JP19880021570
申请日期
1988.02.01
申请人
NIPPON TELEGR & TELEPH CORP <NTT>
发明人
NAGAI NAOFUMI;NAKANO YOSHIO
分类号
H04M3/22;H04M1/24
主分类号
H04M3/22
代理机构
代理人
主权项
地址
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