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发明名称
DATA TERMINAL EQUIPMENT FOR ISDN
摘要
申请公布号
JPH0311857(A)
申请公布日期
1991.01.21
申请号
JP19890145178
申请日期
1989.06.09
申请人
RICOH CO LTD
发明人
OTANI MASAHITO
分类号
H04N1/32;H04L12/02;H04L29/12;H04M1/272
主分类号
H04N1/32
代理机构
代理人
主权项
地址
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