JPH0342834U - - Google Patents
Info
- Publication number
- JPH0342834U JPH0342834U JP10358789U JP10358789U JPH0342834U JP H0342834 U JPH0342834 U JP H0342834U JP 10358789 U JP10358789 U JP 10358789U JP 10358789 U JP10358789 U JP 10358789U JP H0342834 U JPH0342834 U JP H0342834U
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- flange
- manhole
- vertical rods
- supported
- 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
- 230000001681 protective effect Effects 0.000 claims 1
Landscapes
- Ladders (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989103587U JPH086113Y2 (ja) | 1989-09-04 | 1989-09-04 | マンホール用補助梯子 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989103587U JPH086113Y2 (ja) | 1989-09-04 | 1989-09-04 | マンホール用補助梯子 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0342834U true JPH0342834U (un) | 1991-04-23 |
| JPH086113Y2 JPH086113Y2 (ja) | 1996-02-21 |
Family
ID=31652415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989103587U Expired - Lifetime JPH086113Y2 (ja) | 1989-09-04 | 1989-09-04 | マンホール用補助梯子 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH086113Y2 (un) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57205631A (en) * | 1981-06-11 | 1982-12-16 | Hinode Suido Kiki Kk | Cover for underground structure with falling preventive mechanism |
| JPS58185636U (ja) * | 1982-05-31 | 1983-12-09 | 長島鋳物株式会社 | 補助梯子付マンホ−ル |
-
1989
- 1989-09-04 JP JP1989103587U patent/JPH086113Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57205631A (en) * | 1981-06-11 | 1982-12-16 | Hinode Suido Kiki Kk | Cover for underground structure with falling preventive mechanism |
| JPS58185636U (ja) * | 1982-05-31 | 1983-12-09 | 長島鋳物株式会社 | 補助梯子付マンホ−ル |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH086113Y2 (ja) | 1996-02-21 |