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发明名称
SERVICE INTERCEPTION SYSTEM
摘要
PURPOSE:A service interception trunk is used by plural subscribers commonly, thereby making a unit ecpnomical.
申请公布号
JPS5340202(A)
申请公布日期
1978.04.12
申请号
JP19760114753
申请日期
1976.09.27
申请人
HITACHI LTD
发明人
HASEGAWA YOSHIROU
分类号
H04M3/42;H04M3/60
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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