JPH0378395U - - Google Patents
Info
- Publication number
- JPH0378395U JPH0378395U JP13686689U JP13686689U JPH0378395U JP H0378395 U JPH0378395 U JP H0378395U JP 13686689 U JP13686689 U JP 13686689U JP 13686689 U JP13686689 U JP 13686689U JP H0378395 U JPH0378395 U JP H0378395U
- Authority
- JP
- Japan
- Prior art keywords
- protective film
- smoke detector
- light receiving
- transparent protective
- window
- 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 9
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Fire-Detection Mechanisms (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13686689U JPH0378395U (enExample) | 1989-11-28 | 1989-11-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13686689U JPH0378395U (enExample) | 1989-11-28 | 1989-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0378395U true JPH0378395U (enExample) | 1991-08-08 |
Family
ID=31684052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13686689U Pending JPH0378395U (enExample) | 1989-11-28 | 1989-11-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0378395U (enExample) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0231877A (ja) * | 1988-07-21 | 1990-02-01 | Kokusai Gijutsu Kaihatsu Kk | 放射線入出力窓の汚れ防止装置 |
-
1989
- 1989-11-28 JP JP13686689U patent/JPH0378395U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0231877A (ja) * | 1988-07-21 | 1990-02-01 | Kokusai Gijutsu Kaihatsu Kk | 放射線入出力窓の汚れ防止装置 |
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