JPH01126756U - - Google Patents
Info
- Publication number
- JPH01126756U JPH01126756U JP2157788U JP2157788U JPH01126756U JP H01126756 U JPH01126756 U JP H01126756U JP 2157788 U JP2157788 U JP 2157788U JP 2157788 U JP2157788 U JP 2157788U JP H01126756 U JPH01126756 U JP H01126756U
- Authority
- JP
- Japan
- Prior art keywords
- hook
- circuit
- logic
- unit
- logic level
- 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 5
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2157788U JPH0641411Y2 (ja) | 1988-02-19 | 1988-02-19 | 局線の使用状態を表示する回路を備えた電話装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2157788U JPH0641411Y2 (ja) | 1988-02-19 | 1988-02-19 | 局線の使用状態を表示する回路を備えた電話装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01126756U true JPH01126756U (enrdf_load_stackoverflow) | 1989-08-30 |
| JPH0641411Y2 JPH0641411Y2 (ja) | 1994-10-26 |
Family
ID=31238939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2157788U Expired - Lifetime JPH0641411Y2 (ja) | 1988-02-19 | 1988-02-19 | 局線の使用状態を表示する回路を備えた電話装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0641411Y2 (enrdf_load_stackoverflow) |
-
1988
- 1988-02-19 JP JP2157788U patent/JPH0641411Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0641411Y2 (ja) | 1994-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH01126756U (enrdf_load_stackoverflow) | ||
| JPS6165543A (ja) | コ−ドレス電話機 | |
| US4918720A (en) | Circuit device for controlling the actuated state of an electric appliance | |
| JPS59186496A (ja) | 停電時用着信表示回路 | |
| KR940004109Y1 (ko) | 전화기 사용 확인표시회로 | |
| JPS6286759U (enrdf_load_stackoverflow) | ||
| JPH0225588B2 (enrdf_load_stackoverflow) | ||
| JP3071180B2 (ja) | 電話の割込防止装置 | |
| JPS5921569Y2 (ja) | 呼出回路装置 | |
| KR930008005Y1 (ko) | 극성 전환 회로 | |
| KR940004465B1 (ko) | 키폰시스템의 내선 링신호 제어회로 | |
| JPS6234299Y2 (enrdf_load_stackoverflow) | ||
| JPS5918777Y2 (ja) | 通話時間表示装置 | |
| JPS6023732Y2 (ja) | セルチエツカ− | |
| JPS5931065Y2 (ja) | 制御装置 | |
| JP2506967Y2 (ja) | 着信ベル光表示装置 | |
| JPH0450787B2 (enrdf_load_stackoverflow) | ||
| JPS6246215Y2 (enrdf_load_stackoverflow) | ||
| JPH0354330U (enrdf_load_stackoverflow) | ||
| KR930001225Y1 (ko) | 전화기의 자동 보류 해제 장치 | |
| JPH01156651U (enrdf_load_stackoverflow) | ||
| JPH0342535B2 (enrdf_load_stackoverflow) | ||
| JPH057666Y2 (enrdf_load_stackoverflow) | ||
| JPH038625B2 (enrdf_load_stackoverflow) | ||
| JPS62164439U (enrdf_load_stackoverflow) |