JPS6223798U - - Google Patents
Info
- Publication number
- JPS6223798U JPS6223798U JP11584685U JP11584685U JPS6223798U JP S6223798 U JPS6223798 U JP S6223798U JP 11584685 U JP11584685 U JP 11584685U JP 11584685 U JP11584685 U JP 11584685U JP S6223798 U JPS6223798 U JP S6223798U
- Authority
- JP
- Japan
- Prior art keywords
- bell
- sound
- microphone
- rung
- amplifies
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Alarm Systems (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11584685U JPS6223798U (zh) | 1985-07-30 | 1985-07-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11584685U JPS6223798U (zh) | 1985-07-30 | 1985-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6223798U true JPS6223798U (zh) | 1987-02-13 |
Family
ID=30999884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11584685U Pending JPS6223798U (zh) | 1985-07-30 | 1985-07-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6223798U (zh) |
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1985
- 1985-07-30 JP JP11584685U patent/JPS6223798U/ja active Pending