JPH0718632Y2 - マンホール - Google Patents
マンホールInfo
- Publication number
- JPH0718632Y2 JPH0718632Y2 JP1989049367U JP4936789U JPH0718632Y2 JP H0718632 Y2 JPH0718632 Y2 JP H0718632Y2 JP 1989049367 U JP1989049367 U JP 1989049367U JP 4936789 U JP4936789 U JP 4936789U JP H0718632 Y2 JPH0718632 Y2 JP H0718632Y2
- Authority
- JP
- Japan
- Prior art keywords
- manhole
- fall prevention
- prevention fence
- attached
- manhole frame
- 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.)
- Expired - Lifetime
Links
- 230000002265 prevention Effects 0.000 claims description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 42
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989049367U JPH0718632Y2 (ja) | 1989-04-26 | 1989-04-26 | マンホール |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989049367U JPH0718632Y2 (ja) | 1989-04-26 | 1989-04-26 | マンホール |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02141394U JPH02141394U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1990-11-28 |
| JPH0718632Y2 true JPH0718632Y2 (ja) | 1995-05-01 |
Family
ID=31566993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989049367U Expired - Lifetime JPH0718632Y2 (ja) | 1989-04-26 | 1989-04-26 | マンホール |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0718632Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS633993U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1986-06-25 | 1988-01-12 |
-
1989
- 1989-04-26 JP JP1989049367U patent/JPH0718632Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02141394U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1990-11-28 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |