JPS59152886U - ボタン電話装置 - Google Patents
ボタン電話装置Info
- Publication number
- JPS59152886U JPS59152886U JP4689583U JP4689583U JPS59152886U JP S59152886 U JPS59152886 U JP S59152886U JP 4689583 U JP4689583 U JP 4689583U JP 4689583 U JP4689583 U JP 4689583U JP S59152886 U JPS59152886 U JP S59152886U
- Authority
- JP
- Japan
- Prior art keywords
- hold
- self
- timer
- alarm sound
- telephone device
- 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
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4689583U JPS59152886U (ja) | 1983-03-31 | 1983-03-31 | ボタン電話装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4689583U JPS59152886U (ja) | 1983-03-31 | 1983-03-31 | ボタン電話装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59152886U true JPS59152886U (ja) | 1984-10-13 |
| JPS646619Y2 JPS646619Y2 (en:Method) | 1989-02-21 |
Family
ID=30177444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4689583U Granted JPS59152886U (ja) | 1983-03-31 | 1983-03-31 | ボタン電話装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59152886U (en:Method) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56131290A (en) * | 1980-03-18 | 1981-10-14 | Meisei Electric Co Ltd | Trunk line holding system |
-
1983
- 1983-03-31 JP JP4689583U patent/JPS59152886U/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56131290A (en) * | 1980-03-18 | 1981-10-14 | Meisei Electric Co Ltd | Trunk line holding system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS646619Y2 (en:Method) | 1989-02-21 |
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