JPS6240689U - - Google Patents
Info
- Publication number
- JPS6240689U JPS6240689U JP12954185U JP12954185U JPS6240689U JP S6240689 U JPS6240689 U JP S6240689U JP 12954185 U JP12954185 U JP 12954185U JP 12954185 U JP12954185 U JP 12954185U JP S6240689 U JPS6240689 U JP S6240689U
- Authority
- JP
- Japan
- Prior art keywords
- fire
- circuit
- dark room
- smoke
- light source
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 239000000779 smoke Substances 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 4
- 238000012790 confirmation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12954185U JPH0342550Y2 (2) | 1985-08-27 | 1985-08-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12954185U JPH0342550Y2 (2) | 1985-08-27 | 1985-08-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6240689U true JPS6240689U (2) | 1987-03-11 |
| JPH0342550Y2 JPH0342550Y2 (2) | 1991-09-05 |
Family
ID=31026199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12954185U Expired JPH0342550Y2 (2) | 1985-08-27 | 1985-08-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0342550Y2 (2) |
-
1985
- 1985-08-27 JP JP12954185U patent/JPH0342550Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0342550Y2 (2) | 1991-09-05 |
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