| 发明名称 |
LEAD SWITCH CONTROL SYSTEM |
| 摘要 |
PURPOSE:To confirm the open state of the off-normal contact within the trunk through the control circuit and thus to increase the reliability for the lead switch control system. |
| 申请公布号 |
JPS5394809(A) |
申请公布日期 |
1978.08.19 |
| 申请号 |
JP19770010094 |
申请日期 |
1977.01.31 |
| 申请人 |
NIPPON ELECTRIC CO |
发明人 |
TAKAHARA MASAHIRO;MURAI KIYOKAZU;ITOU MASAHARU |
| 分类号 |
H04Q3/64;H01H47/00;H01H47/22;H04Q3/00 |
主分类号 |
H04Q3/64 |
| 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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