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发明名称
EXTENSION NUMBER RETRIEVING DEVICE
摘要
申请公布号
JPH05136891(A)
申请公布日期
1993.06.01
申请号
JP19910324082
申请日期
1991.11.13
申请人
NEC CORP
发明人
MAMIYA HIROSHI
分类号
H04M3/42;H04M3/60
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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