JPS6231437Y2 - - Google Patents
Info
- Publication number
- JPS6231437Y2 JPS6231437Y2 JP5039783U JP5039783U JPS6231437Y2 JP S6231437 Y2 JPS6231437 Y2 JP S6231437Y2 JP 5039783 U JP5039783 U JP 5039783U JP 5039783 U JP5039783 U JP 5039783U JP S6231437 Y2 JPS6231437 Y2 JP S6231437Y2
- Authority
- JP
- Japan
- Prior art keywords
- side wall
- manhole
- circular hole
- ring body
- circular ring
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5039783U JPS59155995U (ja) | 1983-04-04 | 1983-04-04 | 寒冷地貯水槽用マンホ−ル |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5039783U JPS59155995U (ja) | 1983-04-04 | 1983-04-04 | 寒冷地貯水槽用マンホ−ル |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59155995U JPS59155995U (ja) | 1984-10-19 |
| JPS6231437Y2 true JPS6231437Y2 (de) | 1987-08-12 |
Family
ID=30180863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5039783U Granted JPS59155995U (ja) | 1983-04-04 | 1983-04-04 | 寒冷地貯水槽用マンホ−ル |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59155995U (de) |
-
1983
- 1983-04-04 JP JP5039783U patent/JPS59155995U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59155995U (ja) | 1984-10-19 |
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