JPH0528319Y2 - - Google Patents
Info
- Publication number
- JPH0528319Y2 JPH0528319Y2 JP8456587U JP8456587U JPH0528319Y2 JP H0528319 Y2 JPH0528319 Y2 JP H0528319Y2 JP 8456587 U JP8456587 U JP 8456587U JP 8456587 U JP8456587 U JP 8456587U JP H0528319 Y2 JPH0528319 Y2 JP H0528319Y2
- Authority
- JP
- Japan
- Prior art keywords
- ladder
- spring member
- folding
- lower ladder
- hinge
- 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 - Lifetime
Links
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Ladders (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8456587U JPH0528319Y2 (enrdf_load_stackoverflow) | 1987-05-30 | 1987-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8456587U JPH0528319Y2 (enrdf_load_stackoverflow) | 1987-05-30 | 1987-05-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63195100U JPS63195100U (enrdf_load_stackoverflow) | 1988-12-15 |
| JPH0528319Y2 true JPH0528319Y2 (enrdf_load_stackoverflow) | 1993-07-20 |
Family
ID=30939182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8456587U Expired - Lifetime JPH0528319Y2 (enrdf_load_stackoverflow) | 1987-05-30 | 1987-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0528319Y2 (enrdf_load_stackoverflow) |
-
1987
- 1987-05-30 JP JP8456587U patent/JPH0528319Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63195100U (enrdf_load_stackoverflow) | 1988-12-15 |
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