JPH02130183U - - Google Patents
Info
- Publication number
- JPH02130183U JPH02130183U JP15283488U JP15283488U JPH02130183U JP H02130183 U JPH02130183 U JP H02130183U JP 15283488 U JP15283488 U JP 15283488U JP 15283488 U JP15283488 U JP 15283488U JP H02130183 U JPH02130183 U JP H02130183U
- Authority
- JP
- Japan
- Prior art keywords
- telephone
- circuit
- connection terminal
- switch
- determination
- Prior art date
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15283488U JPH0416551Y2 (en]) | 1988-11-24 | 1988-11-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15283488U JPH0416551Y2 (en]) | 1988-11-24 | 1988-11-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02130183U true JPH02130183U (en]) | 1990-10-26 |
| JPH0416551Y2 JPH0416551Y2 (en]) | 1992-04-14 |
Family
ID=31699073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15283488U Expired JPH0416551Y2 (en]) | 1988-11-24 | 1988-11-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0416551Y2 (en]) |
-
1988
- 1988-11-24 JP JP15283488U patent/JPH0416551Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0416551Y2 (en]) | 1992-04-14 |