| 发明名称 |
SWITCHING SYSTEM HAVING CAPABILITY OF SWITCHING CONNECTION DURING CALL ING |
| 摘要 |
PURPOSE:To expand the switching facility by having the capability of switching connection to the new extension even during calling the called extension. |
| 申请公布号 |
JPS52119005(A) |
申请公布日期 |
1977.10.06 |
| 申请号 |
JP19760034266 |
申请日期 |
1976.03.31 |
| 申请人 |
HITACHI LTD |
发明人 |
TSUKATANI TOSHIMICHI;HIRAYAMA TETSUO |
| 分类号 |
H04M3/42;H04M3/60;H04Q3/54 |
主分类号 |
H04M3/42 |
| 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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