JPH03130690U - - Google Patents
Info
- Publication number
- JPH03130690U JPH03130690U JP4021090U JP4021090U JPH03130690U JP H03130690 U JPH03130690 U JP H03130690U JP 4021090 U JP4021090 U JP 4021090U JP 4021090 U JP4021090 U JP 4021090U JP H03130690 U JPH03130690 U JP H03130690U
- Authority
- JP
- Japan
- Prior art keywords
- button telephone
- busy
- extension
- call
- telephone
- 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 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4021090U JPH03130690U (en]) | 1990-04-17 | 1990-04-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4021090U JPH03130690U (en]) | 1990-04-17 | 1990-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03130690U true JPH03130690U (en]) | 1991-12-27 |
Family
ID=31549802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4021090U Pending JPH03130690U (en]) | 1990-04-17 | 1990-04-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03130690U (en]) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63142951A (ja) * | 1986-12-05 | 1988-06-15 | Fujitsu Ltd | メツセ−ジ表示方式 |
-
1990
- 1990-04-17 JP JP4021090U patent/JPH03130690U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63142951A (ja) * | 1986-12-05 | 1988-06-15 | Fujitsu Ltd | メツセ−ジ表示方式 |