JPH0229496Y2 - - Google Patents
Info
- Publication number
- JPH0229496Y2 JPH0229496Y2 JP1981155698U JP15569881U JPH0229496Y2 JP H0229496 Y2 JPH0229496 Y2 JP H0229496Y2 JP 1981155698 U JP1981155698 U JP 1981155698U JP 15569881 U JP15569881 U JP 15569881U JP H0229496 Y2 JPH0229496 Y2 JP H0229496Y2
- Authority
- JP
- Japan
- Prior art keywords
- alarm
- osc
- output
- amplifier
- oscillator
- 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.)
- Expired
Links
Landscapes
- Alarm Systems (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15569881U JPS5863694U (ja) | 1981-10-19 | 1981-10-19 | 2個の警報機能付インタ−ホン方式 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15569881U JPS5863694U (ja) | 1981-10-19 | 1981-10-19 | 2個の警報機能付インタ−ホン方式 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5863694U JPS5863694U (ja) | 1983-04-28 |
JPH0229496Y2 true JPH0229496Y2 (en]) | 1990-08-08 |
Family
ID=29948268
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15569881U Granted JPS5863694U (ja) | 1981-10-19 | 1981-10-19 | 2個の警報機能付インタ−ホン方式 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5863694U (en]) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5283688U (en]) * | 1975-12-19 | 1977-06-22 | ||
JPS5857945B2 (ja) * | 1978-08-28 | 1983-12-22 | 松下電器産業株式会社 | インタ−ホン装置 |
-
1981
- 1981-10-19 JP JP15569881U patent/JPS5863694U/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5863694U (ja) | 1983-04-28 |
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