JPH0376045U - - Google Patents
Info
- Publication number
- JPH0376045U JPH0376045U JP13737789U JP13737789U JPH0376045U JP H0376045 U JPH0376045 U JP H0376045U JP 13737789 U JP13737789 U JP 13737789U JP 13737789 U JP13737789 U JP 13737789U JP H0376045 U JPH0376045 U JP H0376045U
- Authority
- JP
- Japan
- Prior art keywords
- manhole
- support frame
- opening
- end side
- vertical position
- 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
Landscapes
- Ladders (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989137377U JPH077390Y2 (ja) | 1989-11-28 | 1989-11-28 | マンホール用可搬式タラップ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989137377U JPH077390Y2 (ja) | 1989-11-28 | 1989-11-28 | マンホール用可搬式タラップ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0376045U true JPH0376045U (en]) | 1991-07-30 |
| JPH077390Y2 JPH077390Y2 (ja) | 1995-02-22 |
Family
ID=31684537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989137377U Expired - Lifetime JPH077390Y2 (ja) | 1989-11-28 | 1989-11-28 | マンホール用可搬式タラップ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH077390Y2 (en]) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101262969B1 (ko) | 2013-03-06 | 2013-05-09 | 창전이앤시 주식회사 | 터널 유지관리용 환기구의 접이식 안전 사다리 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5299660U (en]) * | 1975-08-15 | 1977-07-28 | ||
| JPS624590U (en]) * | 1985-06-25 | 1987-01-12 | ||
| JPS63130544U (en]) * | 1987-02-16 | 1988-08-26 |
-
1989
- 1989-11-28 JP JP1989137377U patent/JPH077390Y2/ja not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5299660U (en]) * | 1975-08-15 | 1977-07-28 | ||
| JPS624590U (en]) * | 1985-06-25 | 1987-01-12 | ||
| JPS63130544U (en]) * | 1987-02-16 | 1988-08-26 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH077390Y2 (ja) | 1995-02-22 |