JPS61138938U - - Google Patents
Info
- Publication number
- JPS61138938U JPS61138938U JP2271885U JP2271885U JPS61138938U JP S61138938 U JPS61138938 U JP S61138938U JP 2271885 U JP2271885 U JP 2271885U JP 2271885 U JP2271885 U JP 2271885U JP S61138938 U JPS61138938 U JP S61138938U
- Authority
- JP
- Japan
- Prior art keywords
- connecting tube
- open
- stepped
- open ends
- rainproof cap
- 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 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Ventilation (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2271885U JPS61138938U (enExample) | 1985-02-20 | 1985-02-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2271885U JPS61138938U (enExample) | 1985-02-20 | 1985-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61138938U true JPS61138938U (enExample) | 1986-08-28 |
Family
ID=30515275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2271885U Pending JPS61138938U (enExample) | 1985-02-20 | 1985-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61138938U (enExample) |
-
1985
- 1985-02-20 JP JP2271885U patent/JPS61138938U/ja active Pending