JPS623884U - - Google Patents
Info
- Publication number
- JPS623884U JPS623884U JP8790385U JP8790385U JPS623884U JP S623884 U JPS623884 U JP S623884U JP 8790385 U JP8790385 U JP 8790385U JP 8790385 U JP8790385 U JP 8790385U JP S623884 U JPS623884 U JP S623884U
- Authority
- JP
- Japan
- Prior art keywords
- annular groove
- bottom block
- manhole
- outer peripheral
- groove
- 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
- 230000002093 peripheral effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Sewage (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8790385U JPH018621Y2 ( ) | 1985-06-11 | 1985-06-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8790385U JPH018621Y2 ( ) | 1985-06-11 | 1985-06-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS623884U true JPS623884U ( ) | 1987-01-10 |
| JPH018621Y2 JPH018621Y2 ( ) | 1989-03-08 |
Family
ID=30640544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8790385U Expired JPH018621Y2 ( ) | 1985-06-11 | 1985-06-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH018621Y2 ( ) |
-
1985
- 1985-06-11 JP JP8790385U patent/JPH018621Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH018621Y2 ( ) | 1989-03-08 |