JPS637737U - - Google Patents
Info
- Publication number
- JPS637737U JPS637737U JP9890086U JP9890086U JPS637737U JP S637737 U JPS637737 U JP S637737U JP 9890086 U JP9890086 U JP 9890086U JP 9890086 U JP9890086 U JP 9890086U JP S637737 U JPS637737 U JP S637737U
- Authority
- JP
- Japan
- Prior art keywords
- cover
- opening
- opened
- ventilation tube
- stopper
- 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 3
- 239000002184 metal Substances 0.000 claims 1
Landscapes
- Ventilation (AREA)
- Air-Flow Control Members (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9890086U JPH0424346Y2 (zh) | 1986-06-30 | 1986-06-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9890086U JPH0424346Y2 (zh) | 1986-06-30 | 1986-06-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS637737U true JPS637737U (zh) | 1988-01-19 |
| JPH0424346Y2 JPH0424346Y2 (zh) | 1992-06-09 |
Family
ID=30967286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9890086U Expired JPH0424346Y2 (zh) | 1986-06-30 | 1986-06-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0424346Y2 (zh) |
-
1986
- 1986-06-30 JP JP9890086U patent/JPH0424346Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0424346Y2 (zh) | 1992-06-09 |
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