JPH0136993Y2 - - Google Patents
Info
- Publication number
- JPH0136993Y2 JPH0136993Y2 JP6924087U JP6924087U JPH0136993Y2 JP H0136993 Y2 JPH0136993 Y2 JP H0136993Y2 JP 6924087 U JP6924087 U JP 6924087U JP 6924087 U JP6924087 U JP 6924087U JP H0136993 Y2 JPH0136993 Y2 JP H0136993Y2
- Authority
- JP
- Japan
- Prior art keywords
- manhole cover
- locking
- hardware
- cover
- receiving frame
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 239000012530 fluid Substances 0.000 description 17
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6924087U JPH0136993Y2 (en:Method) | 1987-05-08 | 1987-05-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6924087U JPH0136993Y2 (en:Method) | 1987-05-08 | 1987-05-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62176248U JPS62176248U (en:Method) | 1987-11-09 |
| JPH0136993Y2 true JPH0136993Y2 (en:Method) | 1989-11-09 |
Family
ID=30909788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6924087U Expired JPH0136993Y2 (en:Method) | 1987-05-08 | 1987-05-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0136993Y2 (en:Method) |
-
1987
- 1987-05-08 JP JP6924087U patent/JPH0136993Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62176248U (en:Method) | 1987-11-09 |
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