JPH01141846U - - Google Patents
Info
- Publication number
- JPH01141846U JPH01141846U JP3838088U JP3838088U JPH01141846U JP H01141846 U JPH01141846 U JP H01141846U JP 3838088 U JP3838088 U JP 3838088U JP 3838088 U JP3838088 U JP 3838088U JP H01141846 U JPH01141846 U JP H01141846U
- Authority
- JP
- Japan
- Prior art keywords
- wall
- groove
- manhole
- foothold
- utility
- 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
Landscapes
- Ladders (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3838088U JPH01141846U (zh) | 1988-03-25 | 1988-03-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3838088U JPH01141846U (zh) | 1988-03-25 | 1988-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01141846U true JPH01141846U (zh) | 1989-09-28 |
Family
ID=31264932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3838088U Pending JPH01141846U (zh) | 1988-03-25 | 1988-03-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01141846U (zh) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5316677B1 (zh) * | 1970-07-17 | 1978-06-02 |
-
1988
- 1988-03-25 JP JP3838088U patent/JPH01141846U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5316677B1 (zh) * | 1970-07-17 | 1978-06-02 |