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发明名称
RATIO TELEPHONE SET
摘要
申请公布号
JPH0290757(A)
申请公布日期
1990.03.30
申请号
JP19880241963
申请日期
1988.09.27
申请人
NEC CORP
发明人
AKASHI KENICHI
分类号
H04M1/02;H04M1/00
主分类号
H04M1/02
代理机构
代理人
主权项
地址
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