JPS6311537Y2 - - Google Patents
Info
- Publication number
- JPS6311537Y2 JPS6311537Y2 JP4901681U JP4901681U JPS6311537Y2 JP S6311537 Y2 JPS6311537 Y2 JP S6311537Y2 JP 4901681 U JP4901681 U JP 4901681U JP 4901681 U JP4901681 U JP 4901681U JP S6311537 Y2 JPS6311537 Y2 JP S6311537Y2
- Authority
- JP
- Japan
- Prior art keywords
- casing
- shutter
- spring plate
- attached
- shutter seat
- 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.)
- Expired
Links
- 238000009423 ventilation Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Ventilation (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4901681U JPS6311537Y2 (en]) | 1981-04-03 | 1981-04-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4901681U JPS6311537Y2 (en]) | 1981-04-03 | 1981-04-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5728224U JPS5728224U (en]) | 1982-02-15 |
| JPS6311537Y2 true JPS6311537Y2 (en]) | 1988-04-04 |
Family
ID=29434819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4901681U Expired JPS6311537Y2 (en]) | 1981-04-03 | 1981-04-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6311537Y2 (en]) |
-
1981
- 1981-04-03 JP JP4901681U patent/JPS6311537Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5728224U (en]) | 1982-02-15 |
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