JPH01147582U - - Google Patents
Info
- Publication number
- JPH01147582U JPH01147582U JP4304588U JP4304588U JPH01147582U JP H01147582 U JPH01147582 U JP H01147582U JP 4304588 U JP4304588 U JP 4304588U JP 4304588 U JP4304588 U JP 4304588U JP H01147582 U JPH01147582 U JP H01147582U
- Authority
- JP
- Japan
- Prior art keywords
- call
- unit
- television camera
- television
- entrance
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 238000012790 confirmation Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Landscapes
- Closed-Circuit Television Systems (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4304588U JPH01147582U (zh) | 1988-03-31 | 1988-03-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4304588U JPH01147582U (zh) | 1988-03-31 | 1988-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01147582U true JPH01147582U (zh) | 1989-10-12 |
Family
ID=31269446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4304588U Pending JPH01147582U (zh) | 1988-03-31 | 1988-03-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01147582U (zh) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58141086A (ja) * | 1982-02-15 | 1983-08-22 | Matsushita Electric Works Ltd | テレビインタ−ホンシステム |
| JPS58171184A (ja) * | 1982-03-31 | 1983-10-07 | Matsushita Electric Works Ltd | モニタテレビ付インタ−ホン装置 |
-
1988
- 1988-03-31 JP JP4304588U patent/JPH01147582U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58141086A (ja) * | 1982-02-15 | 1983-08-22 | Matsushita Electric Works Ltd | テレビインタ−ホンシステム |
| JPS58171184A (ja) * | 1982-03-31 | 1983-10-07 | Matsushita Electric Works Ltd | モニタテレビ付インタ−ホン装置 |
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