JPS62189542U - - Google Patents
Info
- Publication number
- JPS62189542U JPS62189542U JP7721486U JP7721486U JPS62189542U JP S62189542 U JPS62189542 U JP S62189542U JP 7721486 U JP7721486 U JP 7721486U JP 7721486 U JP7721486 U JP 7721486U JP S62189542 U JPS62189542 U JP S62189542U
- Authority
- JP
- Japan
- Prior art keywords
- shutter plate
- spacing arm
- rotation
- assisting
- ventilation tube
- 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
- 238000009423 ventilation Methods 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Air-Flow Control Members (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7721486U JPS62189542U (enExample) | 1986-05-22 | 1986-05-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7721486U JPS62189542U (enExample) | 1986-05-22 | 1986-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62189542U true JPS62189542U (enExample) | 1987-12-02 |
Family
ID=30925014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7721486U Pending JPS62189542U (enExample) | 1986-05-22 | 1986-05-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62189542U (enExample) |
-
1986
- 1986-05-22 JP JP7721486U patent/JPS62189542U/ja active Pending