JPS643996U - - Google Patents
Info
- Publication number
- JPS643996U JPS643996U JP9846487U JP9846487U JPS643996U JP S643996 U JPS643996 U JP S643996U JP 9846487 U JP9846487 U JP 9846487U JP 9846487 U JP9846487 U JP 9846487U JP S643996 U JPS643996 U JP S643996U
- Authority
- JP
- Japan
- Prior art keywords
- light
- light source
- smoke
- partition plate
- receiving section
- 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
- 239000000779 smoke Substances 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Fire-Detection Mechanisms (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9846487U JPS643996U (enExample) | 1987-06-29 | 1987-06-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9846487U JPS643996U (enExample) | 1987-06-29 | 1987-06-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS643996U true JPS643996U (enExample) | 1989-01-11 |
Family
ID=31324754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9846487U Pending JPS643996U (enExample) | 1987-06-29 | 1987-06-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS643996U (enExample) |
-
1987
- 1987-06-29 JP JP9846487U patent/JPS643996U/ja active Pending