JPH01146651U - - Google Patents
Info
- Publication number
- JPH01146651U JPH01146651U JP4025188U JP4025188U JPH01146651U JP H01146651 U JPH01146651 U JP H01146651U JP 4025188 U JP4025188 U JP 4025188U JP 4025188 U JP4025188 U JP 4025188U JP H01146651 U JPH01146651 U JP H01146651U
- Authority
- JP
- Japan
- Prior art keywords
- office line
- extension telephone
- busy
- line
- control circuit
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 5
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Monitoring And Testing Of Exchanges (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4025188U JPH01146651U (fr) | 1988-03-29 | 1988-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4025188U JPH01146651U (fr) | 1988-03-29 | 1988-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01146651U true JPH01146651U (fr) | 1989-10-09 |
Family
ID=31266725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4025188U Pending JPH01146651U (fr) | 1988-03-29 | 1988-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01146651U (fr) |
-
1988
- 1988-03-29 JP JP4025188U patent/JPH01146651U/ja active Pending