JPH0439912Y2 - - Google Patents
Info
- Publication number
- JPH0439912Y2 JPH0439912Y2 JP13256089U JP13256089U JPH0439912Y2 JP H0439912 Y2 JPH0439912 Y2 JP H0439912Y2 JP 13256089 U JP13256089 U JP 13256089U JP 13256089 U JP13256089 U JP 13256089U JP H0439912 Y2 JPH0439912 Y2 JP H0439912Y2
- Authority
- JP
- Japan
- Prior art keywords
- lid
- balance weight
- frame
- automatic
- locking means
- 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
- 238000007689 inspection Methods 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 241001609370 Puschkinia scilloides Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Landscapes
- Sewage (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13256089U JPH0439912Y2 (en]) | 1989-11-16 | 1989-11-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13256089U JPH0439912Y2 (en]) | 1989-11-16 | 1989-11-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0372987U JPH0372987U (en]) | 1991-07-23 |
| JPH0439912Y2 true JPH0439912Y2 (en]) | 1992-09-18 |
Family
ID=31680015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13256089U Expired JPH0439912Y2 (en]) | 1989-11-16 | 1989-11-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0439912Y2 (en]) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4527013B2 (ja) * | 2005-06-27 | 2010-08-18 | 株式会社ダイクレ | 溝蓋 |
| JP6456765B2 (ja) * | 2015-05-07 | 2019-01-23 | トキワコンクリート工業株式会社 | 開閉蓋 |
-
1989
- 1989-11-16 JP JP13256089U patent/JPH0439912Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0372987U (en]) | 1991-07-23 |
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