JPH0246507Y2 - - Google Patents
Info
- Publication number
- JPH0246507Y2 JPH0246507Y2 JP9001084U JP9001084U JPH0246507Y2 JP H0246507 Y2 JPH0246507 Y2 JP H0246507Y2 JP 9001084 U JP9001084 U JP 9001084U JP 9001084 U JP9001084 U JP 9001084U JP H0246507 Y2 JPH0246507 Y2 JP H0246507Y2
- Authority
- JP
- Japan
- Prior art keywords
- crowbar
- wall portion
- lid
- iron
- upper wall
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 74
- 229910052742 iron Inorganic materials 0.000 claims description 37
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9001084U JPS616546U (ja) | 1984-06-15 | 1984-06-15 | マンホ−ル用鉄蓋 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9001084U JPS616546U (ja) | 1984-06-15 | 1984-06-15 | マンホ−ル用鉄蓋 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS616546U JPS616546U (ja) | 1986-01-16 |
| JPH0246507Y2 true JPH0246507Y2 (en]) | 1990-12-07 |
Family
ID=30644621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9001084U Granted JPS616546U (ja) | 1984-06-15 | 1984-06-15 | マンホ−ル用鉄蓋 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS616546U (en]) |
-
1984
- 1984-06-15 JP JP9001084U patent/JPS616546U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS616546U (ja) | 1986-01-16 |
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