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发明名称
SYSTEM TYPE TELEPHONE SYSTEM
摘要
申请公布号
JPH0334665(A)
申请公布日期
1991.02.14
申请号
JP19890168375
申请日期
1989.06.30
申请人
SONY CORP
发明人
KASUYA MASARU
分类号
H04M1/72
主分类号
H04M1/72
代理机构
代理人
主权项
地址
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