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经营范围
发明名称
INTERACTIVE HOUSE INFORMATION SYSTEM
摘要
申请公布号
PL291975(A1)
申请公布日期
1993.04.05
申请号
PL19910291975
申请日期
1991.10.09
申请人
INTELETEXT SYSTEMS INC
发明人
分类号
H04B3/50;H04M11/06;H04N7/18;(IPC1-7):H04B3/50
主分类号
H04B3/50
代理机构
代理人
主权项
地址
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