JPS63161988U - - Google Patents
Info
- Publication number
- JPS63161988U JPS63161988U JP5309987U JP5309987U JPS63161988U JP S63161988 U JPS63161988 U JP S63161988U JP 5309987 U JP5309987 U JP 5309987U JP 5309987 U JP5309987 U JP 5309987U JP S63161988 U JPS63161988 U JP S63161988U
- Authority
- JP
- Japan
- Prior art keywords
- annular groove
- columnar projection
- cap
- drainage basin
- manhole
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- -1 Polyethylene Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
Landscapes
- Sewage (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987053099U JPH0355665Y2 (cs) | 1987-04-07 | 1987-04-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987053099U JPH0355665Y2 (cs) | 1987-04-07 | 1987-04-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63161988U true JPS63161988U (cs) | 1988-10-21 |
| JPH0355665Y2 JPH0355665Y2 (cs) | 1991-12-11 |
Family
ID=30878856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987053099U Expired JPH0355665Y2 (cs) | 1987-04-07 | 1987-04-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0355665Y2 (cs) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5737309A (en) * | 1980-08-16 | 1982-03-01 | Nippon Kogaku Kk <Nikon> | Focal point detection system of microscope |
-
1987
- 1987-04-07 JP JP1987053099U patent/JPH0355665Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5737309A (en) * | 1980-08-16 | 1982-03-01 | Nippon Kogaku Kk <Nikon> | Focal point detection system of microscope |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0355665Y2 (cs) | 1991-12-11 |