JPS647481U - - Google Patents
Info
- Publication number
- JPS647481U JPS647481U JP10003287U JP10003287U JPS647481U JP S647481 U JPS647481 U JP S647481U JP 10003287 U JP10003287 U JP 10003287U JP 10003287 U JP10003287 U JP 10003287U JP S647481 U JPS647481 U JP S647481U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- loop
- photocoupler
- office line
- dial
- 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
Landscapes
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Interface Circuits In Exchanges (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10003287U JPS647481U (en]) | 1987-07-01 | 1987-07-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10003287U JPS647481U (en]) | 1987-07-01 | 1987-07-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS647481U true JPS647481U (en]) | 1989-01-17 |
Family
ID=31327738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10003287U Pending JPS647481U (en]) | 1987-07-01 | 1987-07-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS647481U (en]) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6272292A (ja) * | 1985-09-26 | 1987-04-02 | Matsushita Electric Ind Co Ltd | ボタン電話装置の局線インタ−フエイス |
-
1987
- 1987-07-01 JP JP10003287U patent/JPS647481U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6272292A (ja) * | 1985-09-26 | 1987-04-02 | Matsushita Electric Ind Co Ltd | ボタン電話装置の局線インタ−フエイス |
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