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发明名称
PREFERENTIAL TELEPHONE SYSTEM
摘要
申请公布号
JPS6386648(A)
申请公布日期
1988.04.18
申请号
JP19860230060
申请日期
1986.09.30
申请人
TOSHIBA CORP
发明人
OI KATSUNORI;ISHII AKIRA
分类号
H04M1/00;H04M1/64;H04M1/658
主分类号
H04M1/00
代理机构
代理人
主权项
地址
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