JPH0521550Y2 - - Google Patents
Info
- Publication number
- JPH0521550Y2 JPH0521550Y2 JP1984133171U JP13317184U JPH0521550Y2 JP H0521550 Y2 JPH0521550 Y2 JP H0521550Y2 JP 1984133171 U JP1984133171 U JP 1984133171U JP 13317184 U JP13317184 U JP 13317184U JP H0521550 Y2 JPH0521550 Y2 JP H0521550Y2
- Authority
- JP
- Japan
- Prior art keywords
- manhole
- bottom plate
- assembled
- cylindrical body
- protractor
- 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
- 238000010276 construction Methods 0.000 description 11
- 238000005553 drilling Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Landscapes
- Sewage (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1984133171U JPH0521550Y2 (US20020051482A1-20020502-M00012.png) | 1984-08-31 | 1984-08-31 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1984133171U JPH0521550Y2 (US20020051482A1-20020502-M00012.png) | 1984-08-31 | 1984-08-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6150140U JPS6150140U (US20020051482A1-20020502-M00012.png) | 1986-04-04 |
JPH0521550Y2 true JPH0521550Y2 (US20020051482A1-20020502-M00012.png) | 1993-06-02 |
Family
ID=30691723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1984133171U Expired - Lifetime JPH0521550Y2 (US20020051482A1-20020502-M00012.png) | 1984-08-31 | 1984-08-31 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0521550Y2 (US20020051482A1-20020502-M00012.png) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5664035A (en) * | 1979-10-31 | 1981-06-01 | Yukio Takashima | Construction of manhole and segment thereof |
-
1984
- 1984-08-31 JP JP1984133171U patent/JPH0521550Y2/ja not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5664035A (en) * | 1979-10-31 | 1981-06-01 | Yukio Takashima | Construction of manhole and segment thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS6150140U (US20020051482A1-20020502-M00012.png) | 1986-04-04 |