JPS63187455U - - Google Patents
Info
- Publication number
- JPS63187455U JPS63187455U JP7915387U JP7915387U JPS63187455U JP S63187455 U JPS63187455 U JP S63187455U JP 7915387 U JP7915387 U JP 7915387U JP 7915387 U JP7915387 U JP 7915387U JP S63187455 U JPS63187455 U JP S63187455U
- Authority
- JP
- Japan
- Prior art keywords
- telephone
- receiving
- hook
- signal line
- detection result
- 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
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7915387U JPS63187455U (fr) | 1987-05-25 | 1987-05-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7915387U JPS63187455U (fr) | 1987-05-25 | 1987-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63187455U true JPS63187455U (fr) | 1988-11-30 |
Family
ID=30928747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7915387U Pending JPS63187455U (fr) | 1987-05-25 | 1987-05-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63187455U (fr) |
-
1987
- 1987-05-25 JP JP7915387U patent/JPS63187455U/ja active Pending