JPH043820U - - Google Patents
Info
- Publication number
- JPH043820U JPH043820U JP4536890U JP4536890U JPH043820U JP H043820 U JPH043820 U JP H043820U JP 4536890 U JP4536890 U JP 4536890U JP 4536890 U JP4536890 U JP 4536890U JP H043820 U JPH043820 U JP H043820U
- Authority
- JP
- Japan
- Prior art keywords
- retainer
- thin film
- opening edge
- valve
- ventilation system
- 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
- 239000010409 thin film Substances 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
Landscapes
- Air-Flow Control Members (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4536890U JPH043820U (en, 2012) | 1990-04-27 | 1990-04-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4536890U JPH043820U (en, 2012) | 1990-04-27 | 1990-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH043820U true JPH043820U (en, 2012) | 1992-01-14 |
Family
ID=31559483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4536890U Pending JPH043820U (en, 2012) | 1990-04-27 | 1990-04-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH043820U (en, 2012) |
-
1990
- 1990-04-27 JP JP4536890U patent/JPH043820U/ja active Pending