JPS6414799U - - Google Patents
Info
- Publication number
- JPS6414799U JPS6414799U JP11107987U JP11107987U JPS6414799U JP S6414799 U JPS6414799 U JP S6414799U JP 11107987 U JP11107987 U JP 11107987U JP 11107987 U JP11107987 U JP 11107987U JP S6414799 U JPS6414799 U JP S6414799U
- Authority
- JP
- Japan
- Prior art keywords
- plates
- key
- manhole cover
- cover plate
- closing tool
- 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
- 238000001125 extrusion Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11107987U JPH0628491Y2 (ja) | 1987-07-20 | 1987-07-20 | マンホ−ル蓋板開閉用具 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11107987U JPH0628491Y2 (ja) | 1987-07-20 | 1987-07-20 | マンホ−ル蓋板開閉用具 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6414799U true JPS6414799U (sl) | 1989-01-25 |
| JPH0628491Y2 JPH0628491Y2 (ja) | 1994-08-03 |
Family
ID=31348820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11107987U Expired - Lifetime JPH0628491Y2 (ja) | 1987-07-20 | 1987-07-20 | マンホ−ル蓋板開閉用具 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0628491Y2 (sl) |
-
1987
- 1987-07-20 JP JP11107987U patent/JPH0628491Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0628491Y2 (ja) | 1994-08-03 |