JPS5754434A - Denkikikyojotaihochisochi - Google Patents
DenkikikyojotaihochisochiInfo
- Publication number
- JPS5754434A JPS5754434A JP12988980A JP12988980A JPS5754434A JP S5754434 A JPS5754434 A JP S5754434A JP 12988980 A JP12988980 A JP 12988980A JP 12988980 A JP12988980 A JP 12988980A JP S5754434 A JPS5754434 A JP S5754434A
- Authority
- JP
- Japan
- Prior art keywords
- electric equipment
- amplified
- oscillator
- low frequency
- signal
- 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
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Alarm Systems (AREA)
- Superheterodyne Receivers (AREA)
- Selective Calling Equipment (AREA)
- Transmitters (AREA)
- Circuits Of Receivers In General (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12988980A JPS5754434A (ja) | 1980-09-18 | 1980-09-18 | Denkikikyojotaihochisochi |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12988980A JPS5754434A (ja) | 1980-09-18 | 1980-09-18 | Denkikikyojotaihochisochi |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5754434A true JPS5754434A (ja) | 1982-03-31 |
JPS637493B2 JPS637493B2 (ja) | 1988-02-17 |
Family
ID=15020847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12988980A Granted JPS5754434A (ja) | 1980-09-18 | 1980-09-18 | Denkikikyojotaihochisochi |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5754434A (ja) |
-
1980
- 1980-09-18 JP JP12988980A patent/JPS5754434A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS637493B2 (ja) | 1988-02-17 |
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