JPS61130841U - - Google Patents
Info
- Publication number
- JPS61130841U JPS61130841U JP1295885U JP1295885U JPS61130841U JP S61130841 U JPS61130841 U JP S61130841U JP 1295885 U JP1295885 U JP 1295885U JP 1295885 U JP1295885 U JP 1295885U JP S61130841 U JPS61130841 U JP S61130841U
- Authority
- JP
- Japan
- Prior art keywords
- opening
- air volume
- volume adjustment
- ventilation fan
- closes
- 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
- 238000009423 ventilation Methods 0.000 claims description 5
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Ventilation (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985012958U JPH0442664Y2 (fr) | 1985-01-31 | 1985-01-31 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985012958U JPH0442664Y2 (fr) | 1985-01-31 | 1985-01-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61130841U true JPS61130841U (fr) | 1986-08-15 |
JPH0442664Y2 JPH0442664Y2 (fr) | 1992-10-08 |
Family
ID=30496518
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1985012958U Expired JPH0442664Y2 (fr) | 1985-01-31 | 1985-01-31 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0442664Y2 (fr) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5228509A (en) * | 1975-08-29 | 1977-03-03 | Akio Watanabe | Electric furnace with reduction burning apparatus |
JPS54170662U (fr) * | 1978-05-23 | 1979-12-03 |
-
1985
- 1985-01-31 JP JP1985012958U patent/JPH0442664Y2/ja not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5228509A (en) * | 1975-08-29 | 1977-03-03 | Akio Watanabe | Electric furnace with reduction burning apparatus |
JPS54170662U (fr) * | 1978-05-23 | 1979-12-03 |
Also Published As
Publication number | Publication date |
---|---|
JPH0442664Y2 (fr) | 1992-10-08 |