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发明名称
PRIVATE BRANCH OF EXCHANGE
摘要
申请公布号
JPH0241063(A)
申请公布日期
1990.02.09
申请号
JP19880192409
申请日期
1988.08.01
申请人
TOSHIBA CORP
发明人
HIROI MAKOTO
分类号
H04M3/46;H04M3/42;H04Q3/58
主分类号
H04M3/46
代理机构
代理人
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