JPS61178140U - - Google Patents
Info
- Publication number
- JPS61178140U JPS61178140U JP6194085U JP6194085U JPS61178140U JP S61178140 U JPS61178140 U JP S61178140U JP 6194085 U JP6194085 U JP 6194085U JP 6194085 U JP6194085 U JP 6194085U JP S61178140 U JPS61178140 U JP S61178140U
- Authority
- JP
- Japan
- Prior art keywords
- ventilation
- ventilation hole
- check valve
- valve body
- flow
- 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 14
- 238000005192 partition Methods 0.000 claims description 2
- 241001465754 Metazoa Species 0.000 claims 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Ventilation (AREA)
- Building Environments (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985061940U JPH0221717Y2 (https=) | 1985-04-24 | 1985-04-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985061940U JPH0221717Y2 (https=) | 1985-04-24 | 1985-04-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61178140U true JPS61178140U (https=) | 1986-11-06 |
| JPH0221717Y2 JPH0221717Y2 (https=) | 1990-06-12 |
Family
ID=30590682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985061940U Expired JPH0221717Y2 (https=) | 1985-04-24 | 1985-04-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0221717Y2 (https=) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59175509U (ja) * | 1983-05-13 | 1984-11-24 | 大下 一義 | 開閉装置付き床下換気口 |
-
1985
- 1985-04-24 JP JP1985061940U patent/JPH0221717Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59175509U (ja) * | 1983-05-13 | 1984-11-24 | 大下 一義 | 開閉装置付き床下換気口 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0221717Y2 (https=) | 1990-06-12 |