JPH041245U - - Google Patents
Info
- Publication number
- JPH041245U JPH041245U JP4199290U JP4199290U JPH041245U JP H041245 U JPH041245 U JP H041245U JP 4199290 U JP4199290 U JP 4199290U JP 4199290 U JP4199290 U JP 4199290U JP H041245 U JPH041245 U JP H041245U
- Authority
- JP
- Japan
- Prior art keywords
- receiving
- receiving frame
- lid
- peripheral edge
- fall prevention
- 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.)
- Pending
Links
- 230000002265 prevention Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims 3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4199290U JPH041245U (ro) | 1990-04-19 | 1990-04-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4199290U JPH041245U (ro) | 1990-04-19 | 1990-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH041245U true JPH041245U (ro) | 1992-01-08 |
Family
ID=31553142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4199290U Pending JPH041245U (ro) | 1990-04-19 | 1990-04-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH041245U (ro) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040009695A (ko) * | 2002-07-24 | 2004-01-31 | 주식회사 삼영정화조 | 맨홀커버의 잠금장치 |
| KR100509961B1 (ko) * | 2002-12-04 | 2005-08-25 | (주) 시흥 | 맨홀뚜껑 |
| KR101036209B1 (ko) * | 2011-04-18 | 2011-05-20 | 류순모 | 고층 건물의 화재피난용 맨홀개폐장치 |
-
1990
- 1990-04-19 JP JP4199290U patent/JPH041245U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040009695A (ko) * | 2002-07-24 | 2004-01-31 | 주식회사 삼영정화조 | 맨홀커버의 잠금장치 |
| KR100509961B1 (ko) * | 2002-12-04 | 2005-08-25 | (주) 시흥 | 맨홀뚜껑 |
| KR101036209B1 (ko) * | 2011-04-18 | 2011-05-20 | 류순모 | 고층 건물의 화재피난용 맨홀개폐장치 |