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经营范围
发明名称
PUBLIC COMMUNICATION NETWORK SELECTION SYSTEM
摘要
申请公布号
JPH01248758(A)
申请公布日期
1989.10.04
申请号
JP19880077205
申请日期
1988.03.29
申请人
NEC ENG LTD
发明人
FUJIKAWA SEIJI
分类号
H04N1/00;H04M11/00;H04N1/34
主分类号
H04N1/00
代理机构
代理人
主权项
地址
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