JPH0122013Y2 - - Google Patents
Info
- Publication number
- JPH0122013Y2 JPH0122013Y2 JP2048781U JP2048781U JPH0122013Y2 JP H0122013 Y2 JPH0122013 Y2 JP H0122013Y2 JP 2048781 U JP2048781 U JP 2048781U JP 2048781 U JP2048781 U JP 2048781U JP H0122013 Y2 JPH0122013 Y2 JP H0122013Y2
- Authority
- JP
- Japan
- Prior art keywords
- ventilation
- hook
- threaded opening
- grid
- flanged cap
- 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
- 238000009423 ventilation Methods 0.000 claims description 30
- 238000009415 formwork Methods 0.000 description 12
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 241000282472 Canis lupus familiaris Species 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2048781U JPH0122013Y2 (ko) | 1981-02-16 | 1981-02-16 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2048781U JPH0122013Y2 (ko) | 1981-02-16 | 1981-02-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57133711U JPS57133711U (ko) | 1982-08-20 |
JPH0122013Y2 true JPH0122013Y2 (ko) | 1989-06-29 |
Family
ID=29818392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2048781U Expired JPH0122013Y2 (ko) | 1981-02-16 | 1981-02-16 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0122013Y2 (ko) |
-
1981
- 1981-02-16 JP JP2048781U patent/JPH0122013Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS57133711U (ko) | 1982-08-20 |
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