JPH02109943U - - Google Patents
Info
- Publication number
- JPH02109943U JPH02109943U JP1558890U JP1558890U JPH02109943U JP H02109943 U JPH02109943 U JP H02109943U JP 1558890 U JP1558890 U JP 1558890U JP 1558890 U JP1558890 U JP 1558890U JP H02109943 U JPH02109943 U JP H02109943U
- Authority
- JP
- Japan
- Prior art keywords
- suspended particulate
- smoke
- detector
- concentration
- cleanliness
- 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 6
- 230000002265 prevention Effects 0.000 claims description 2
- 230000003749 cleanliness Effects 0.000 claims 2
- 239000004065 semiconductor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Ventilation (AREA)
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1558890U JPH02109943U (enrdf_load_stackoverflow) | 1990-02-21 | 1990-02-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1558890U JPH02109943U (enrdf_load_stackoverflow) | 1990-02-21 | 1990-02-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02109943U true JPH02109943U (enrdf_load_stackoverflow) | 1990-09-03 |
Family
ID=31227764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1558890U Pending JPH02109943U (enrdf_load_stackoverflow) | 1990-02-21 | 1990-02-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02109943U (enrdf_load_stackoverflow) |
-
1990
- 1990-02-21 JP JP1558890U patent/JPH02109943U/ja active Pending
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