JPH0242739Y2 - - Google Patents
Info
- Publication number
- JPH0242739Y2 JPH0242739Y2 JP1367485U JP1367485U JPH0242739Y2 JP H0242739 Y2 JPH0242739 Y2 JP H0242739Y2 JP 1367485 U JP1367485 U JP 1367485U JP 1367485 U JP1367485 U JP 1367485U JP H0242739 Y2 JPH0242739 Y2 JP H0242739Y2
- Authority
- JP
- Japan
- Prior art keywords
- frame
- corner
- ladder
- exit
- entrance
- 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
- 239000000463 material Substances 0.000 claims description 18
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Ladders (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1367485U JPH0242739Y2 (en]) | 1985-02-04 | 1985-02-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1367485U JPH0242739Y2 (en]) | 1985-02-04 | 1985-02-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61130646U JPS61130646U (en]) | 1986-08-15 |
| JPH0242739Y2 true JPH0242739Y2 (en]) | 1990-11-14 |
Family
ID=30497899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1367485U Expired JPH0242739Y2 (en]) | 1985-02-04 | 1985-02-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0242739Y2 (en]) |
-
1985
- 1985-02-04 JP JP1367485U patent/JPH0242739Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61130646U (en]) | 1986-08-15 |
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