JPH03122351U - - Google Patents
Info
- Publication number
- JPH03122351U JPH03122351U JP3084490U JP3084490U JPH03122351U JP H03122351 U JPH03122351 U JP H03122351U JP 3084490 U JP3084490 U JP 3084490U JP 3084490 U JP3084490 U JP 3084490U JP H03122351 U JPH03122351 U JP H03122351U
- Authority
- JP
- Japan
- Prior art keywords
- detected
- ultraviolet rays
- density meter
- main unit
- smoke density
- 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
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3084490U JPH03122351U (enExample) | 1990-03-26 | 1990-03-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3084490U JPH03122351U (enExample) | 1990-03-26 | 1990-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03122351U true JPH03122351U (enExample) | 1991-12-13 |
Family
ID=31533560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3084490U Pending JPH03122351U (enExample) | 1990-03-26 | 1990-03-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03122351U (enExample) |
-
1990
- 1990-03-26 JP JP3084490U patent/JPH03122351U/ja active Pending