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发明名称
NUMBER RETRIEVAL SYSTEM IN EXCHANGE SYSTEM
摘要
申请公布号
JPH02214291(A)
申请公布日期
1990.08.27
申请号
JP19890033534
申请日期
1989.02.15
申请人
OKI ELECTRIC IND CO LTD
发明人
HIRATSUKA TAKASHI
分类号
H04Q3/545;H04Q3/76
主分类号
H04Q3/545
代理机构
代理人
主权项
地址
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