JPS5645470B2 - - Google Patents
Info
- Publication number
- JPS5645470B2 JPS5645470B2 JP4690576A JP4690576A JPS5645470B2 JP S5645470 B2 JPS5645470 B2 JP S5645470B2 JP 4690576 A JP4690576 A JP 4690576A JP 4690576 A JP4690576 A JP 4690576A JP S5645470 B2 JPS5645470 B2 JP S5645470B2
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4690576A JPS52130211A (en) | 1976-04-24 | 1976-04-24 | Mode changeover system of attendant board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4690576A JPS52130211A (en) | 1976-04-24 | 1976-04-24 | Mode changeover system of attendant board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52130211A JPS52130211A (en) | 1977-11-01 |
| JPS5645470B2 true JPS5645470B2 (Direct) | 1981-10-26 |
Family
ID=12760360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4690576A Granted JPS52130211A (en) | 1976-04-24 | 1976-04-24 | Mode changeover system of attendant board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS52130211A (Direct) |
-
1976
- 1976-04-24 JP JP4690576A patent/JPS52130211A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52130211A (en) | 1977-11-01 |