JPH0419980U - - Google Patents
Info
- Publication number
- JPH0419980U JPH0419980U JP6209590U JP6209590U JPH0419980U JP H0419980 U JPH0419980 U JP H0419980U JP 6209590 U JP6209590 U JP 6209590U JP 6209590 U JP6209590 U JP 6209590U JP H0419980 U JPH0419980 U JP H0419980U
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- inner pipe
- support part
- outer pipe
- double
- 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 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6209590U JPH0419980U (hu) | 1990-06-12 | 1990-06-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6209590U JPH0419980U (hu) | 1990-06-12 | 1990-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0419980U true JPH0419980U (hu) | 1992-02-19 |
Family
ID=31590934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6209590U Pending JPH0419980U (hu) | 1990-06-12 | 1990-06-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0419980U (hu) |
-
1990
- 1990-06-12 JP JP6209590U patent/JPH0419980U/ja active Pending