JPH0299494U - - Google Patents
Info
- Publication number
- JPH0299494U JPH0299494U JP508089U JP508089U JPH0299494U JP H0299494 U JPH0299494 U JP H0299494U JP 508089 U JP508089 U JP 508089U JP 508089 U JP508089 U JP 508089U JP H0299494 U JPH0299494 U JP H0299494U
- Authority
- JP
- Japan
- Prior art keywords
- sonic
- gas
- gas leak
- circuit breaker
- discriminator
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
Landscapes
- Emergency Alarm Devices (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP508089U JPH0299494U (fi) | 1989-01-20 | 1989-01-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP508089U JPH0299494U (fi) | 1989-01-20 | 1989-01-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0299494U true JPH0299494U (fi) | 1990-08-08 |
Family
ID=31208146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP508089U Pending JPH0299494U (fi) | 1989-01-20 | 1989-01-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0299494U (fi) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5723473B2 (fi) * | 1972-09-22 | 1982-05-19 | ||
| JPS5743681B2 (fi) * | 1978-04-30 | 1982-09-16 |
-
1989
- 1989-01-20 JP JP508089U patent/JPH0299494U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5723473B2 (fi) * | 1972-09-22 | 1982-05-19 | ||
| JPS5743681B2 (fi) * | 1978-04-30 | 1982-09-16 |