| 发明名称 |
OFFICE LINE MONITORING CIRCUIT |
| 摘要 |
PURPOSE:To eliminate an error function, monitor steadily an office line condition, miniaturize and enhance a reliability of the circuit, by the use of semiconductive part. |
| 申请公布号 |
JPS5298405(A) |
申请公布日期 |
1977.08.18 |
| 申请号 |
JP19760014834 |
申请日期 |
1976.02.16 |
| 申请人 |
NIPPON ELECTRIC CO |
发明人 |
IIJIMA HIROO;FUJITA KAZUNORI |
| 分类号 |
H04M11/00;H04M1/00;H04M3/28;H04Q3/42;H04Q3/58 |
主分类号 |
H04M11/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
