JPS5413297A - Fire alarm unit - Google Patents
Fire alarm unitInfo
- Publication number
- JPS5413297A JPS5413297A JP7886177A JP7886177A JPS5413297A JP S5413297 A JPS5413297 A JP S5413297A JP 7886177 A JP7886177 A JP 7886177A JP 7886177 A JP7886177 A JP 7886177A JP S5413297 A JPS5413297 A JP S5413297A
- Authority
- JP
- Japan
- Prior art keywords
- alarm unit
- fire alarm
- emergency
- telephones
- slave
- 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
Landscapes
- Fire-Detection Mechanisms (AREA)
- Alarm Systems (AREA)
Abstract
PURPOSE: To commonly use the line and to smoothly perform communication at a fire taken place with a simple constitution, by giving call tone to slave telephone sets for emergency other than selected circuits and by connecting slave telephones, master telephones and power supply lines for emergency.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7886177A JPS5413297A (en) | 1977-06-30 | 1977-06-30 | Fire alarm unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7886177A JPS5413297A (en) | 1977-06-30 | 1977-06-30 | Fire alarm unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5413297A true JPS5413297A (en) | 1979-01-31 |
Family
ID=13673600
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7886177A Pending JPS5413297A (en) | 1977-06-30 | 1977-06-30 | Fire alarm unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5413297A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS445529Y1 (en) * | 1965-09-24 | 1969-02-28 |
-
1977
- 1977-06-30 JP JP7886177A patent/JPS5413297A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS445529Y1 (en) * | 1965-09-24 | 1969-02-28 |
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