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发明名称
MULTIPLE TALKING DEVICE USING TIME SHARING SYSTEM
摘要
申请公布号
JPS54917(A)
申请公布日期
1979.01.06
申请号
JP19770066550
申请日期
1977.06.06
申请人
AIPHONE CO LTD
发明人
YOKOI TATSUO
分类号
H04J3/10;H04J3/00
主分类号
H04J3/10
代理机构
代理人
主权项
地址
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