JPH01139653U - - Google Patents
Info
- Publication number
- JPH01139653U JPH01139653U JP3624288U JP3624288U JPH01139653U JP H01139653 U JPH01139653 U JP H01139653U JP 3624288 U JP3624288 U JP 3624288U JP 3624288 U JP3624288 U JP 3624288U JP H01139653 U JPH01139653 U JP H01139653U
- Authority
- JP
- Japan
- Prior art keywords
- telephone line
- current
- circuit
- incoming signal
- backflow prevention
- 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
- 230000002265 prevention Effects 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3624288U JPH01139653U (cs) | 1988-03-18 | 1988-03-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3624288U JPH01139653U (cs) | 1988-03-18 | 1988-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01139653U true JPH01139653U (cs) | 1989-09-25 |
Family
ID=31262857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3624288U Pending JPH01139653U (cs) | 1988-03-18 | 1988-03-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01139653U (cs) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4496Y1 (cs) * | 1966-02-22 | 1969-01-07 |
-
1988
- 1988-03-18 JP JP3624288U patent/JPH01139653U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4496Y1 (cs) * | 1966-02-22 | 1969-01-07 |
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