JPS63198638U - - Google Patents
Info
- Publication number
- JPS63198638U JPS63198638U JP8926587U JP8926587U JPS63198638U JP S63198638 U JPS63198638 U JP S63198638U JP 8926587 U JP8926587 U JP 8926587U JP 8926587 U JP8926587 U JP 8926587U JP S63198638 U JPS63198638 U JP S63198638U
- Authority
- JP
- Japan
- Prior art keywords
- manhole cover
- locking member
- engagement
- receiving frame
- protrusion
- 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
- 230000002265 prevention Effects 0.000 claims description 4
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987089265U JPH0612056Y2 (ja) | 1987-06-10 | 1987-06-10 | マンホ−ル蓋の浮上防止装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987089265U JPH0612056Y2 (ja) | 1987-06-10 | 1987-06-10 | マンホ−ル蓋の浮上防止装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63198638U true JPS63198638U (enExample) | 1988-12-21 |
| JPH0612056Y2 JPH0612056Y2 (ja) | 1994-03-30 |
Family
ID=30948100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987089265U Expired - Lifetime JPH0612056Y2 (ja) | 1987-06-10 | 1987-06-10 | マンホ−ル蓋の浮上防止装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0612056Y2 (enExample) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57197543U (enExample) * | 1981-06-13 | 1982-12-15 |
-
1987
- 1987-06-10 JP JP1987089265U patent/JPH0612056Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57197543U (enExample) * | 1981-06-13 | 1982-12-15 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0612056Y2 (ja) | 1994-03-30 |