JPS522048A - Smoke prevention shutter means - Google Patents
Smoke prevention shutter meansInfo
- Publication number
- JPS522048A JPS522048A JP7758575A JP7758575A JPS522048A JP S522048 A JPS522048 A JP S522048A JP 7758575 A JP7758575 A JP 7758575A JP 7758575 A JP7758575 A JP 7758575A JP S522048 A JPS522048 A JP S522048A
- Authority
- JP
- Japan
- Prior art keywords
- shutter means
- smoke prevention
- prevention shutter
- smoke
- refugee
- 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
Landscapes
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
PURPOSE: To automatically shut smoke produced at the time of a fire accident and also enable prompt and safe refuge without constituting an obstacle to the retreat of the refugee.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7758575A JPS522048A (en) | 1975-06-24 | 1975-06-24 | Smoke prevention shutter means |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7758575A JPS522048A (en) | 1975-06-24 | 1975-06-24 | Smoke prevention shutter means |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS522048A true JPS522048A (en) | 1977-01-08 |
JPS5524549B2 JPS5524549B2 (en) | 1980-06-30 |
Family
ID=13638044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7758575A Granted JPS522048A (en) | 1975-06-24 | 1975-06-24 | Smoke prevention shutter means |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS522048A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58161293U (en) * | 1982-04-22 | 1983-10-27 | 東京電力株式会社 | Waterproof plug at the mouth of underground power distribution cable protection pipe |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5093439U (en) * | 1973-12-25 | 1975-08-06 |
-
1975
- 1975-06-24 JP JP7758575A patent/JPS522048A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5093439U (en) * | 1973-12-25 | 1975-08-06 |
Also Published As
Publication number | Publication date |
---|---|
JPS5524549B2 (en) | 1980-06-30 |
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