| 发明名称 |
CONNECTION SYSTEM FOR EMERGENCY SECRETARY TELEPHONE |
| 摘要 |
PURPOSE:To economize the system by performing the recalling at an advanced call by a caller by means of the units provided without adding any new hardwares, through commonly using ordinary trunks for the connection of an emergency secretary call. |
| 申请公布号 |
JPS53130906(A) |
申请公布日期 |
1978.11.15 |
| 申请号 |
JP19770045401 |
申请日期 |
1977.04.20 |
| 申请人 |
FUJITSU LTD |
发明人 |
ISHII TADAO;GOTOU NORIO;KUBO YOSHIFUMI |
| 分类号 |
H04Q3/54;H04Q3/42;H04Q3/555 |
主分类号 |
H04Q3/54 |
| 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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