| 发明名称 |
RESPONSE SYSTEM FOR DISPERSION TRANSMISSION TYPE PRIVATE BRANCHHEXCHAN GE |
| 摘要 |
PURPOSE:To eliminate additional unit with each extension by adding discrimination function to transmission register, and also to obtain economical switchboard which has no functional deterioration. |
| 申请公布号 |
JPS52116102(A) |
申请公布日期 |
1977.09.29 |
| 申请号 |
JP19760032582 |
申请日期 |
1976.03.26 |
| 申请人 |
HITACHI LTD |
发明人 |
AKIYAMA TADAHIKO;HANADA GOROU;KOBAYASHI YOSHIJI |
| 分类号 |
H04Q3/58;H04Q3/62 |
主分类号 |
H04Q3/58 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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