JPS616593B2 - - Google Patents
Info
- Publication number
- JPS616593B2 JPS616593B2 JP9750884A JP9750884A JPS616593B2 JP S616593 B2 JPS616593 B2 JP S616593B2 JP 9750884 A JP9750884 A JP 9750884A JP 9750884 A JP9750884 A JP 9750884A JP S616593 B2 JPS616593 B2 JP S616593B2
- 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
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9750884A JPS59224996A (ja) | 1984-05-17 | 1984-05-17 | ボタン電話装置における監視回路 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9750884A JPS59224996A (ja) | 1984-05-17 | 1984-05-17 | ボタン電話装置における監視回路 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3955679A Division JPS55132165A (en) | 1979-04-02 | 1979-04-02 | Supervising circuit of button telephone set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59224996A JPS59224996A (ja) | 1984-12-17 |
| JPS616593B2 true JPS616593B2 (en, 2012) | 1986-02-27 |
Family
ID=14194195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9750884A Granted JPS59224996A (ja) | 1984-05-17 | 1984-05-17 | ボタン電話装置における監視回路 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59224996A (en, 2012) |
-
1984
- 1984-05-17 JP JP9750884A patent/JPS59224996A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59224996A (ja) | 1984-12-17 |