JP2522548Y2 - 折畳梯子 - Google Patents
折畳梯子Info
- Publication number
- JP2522548Y2 JP2522548Y2 JP1990054597U JP5459790U JP2522548Y2 JP 2522548 Y2 JP2522548 Y2 JP 2522548Y2 JP 1990054597 U JP1990054597 U JP 1990054597U JP 5459790 U JP5459790 U JP 5459790U JP 2522548 Y2 JP2522548 Y2 JP 2522548Y2
- Authority
- JP
- Japan
- Prior art keywords
- support
- ladder
- bent
- tate
- vertical
- 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
- 239000007769 metal material Substances 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims description 2
- 230000008602 contraction Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Ladders (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990054597U JP2522548Y2 (ja) | 1990-05-28 | 1990-05-28 | 折畳梯子 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990054597U JP2522548Y2 (ja) | 1990-05-28 | 1990-05-28 | 折畳梯子 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0413800U JPH0413800U (en, 2012) | 1992-02-04 |
JP2522548Y2 true JP2522548Y2 (ja) | 1997-01-16 |
Family
ID=31576800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1990054597U Expired - Lifetime JP2522548Y2 (ja) | 1990-05-28 | 1990-05-28 | 折畳梯子 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2522548Y2 (en, 2012) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5814915B2 (ja) * | 1978-10-17 | 1983-03-23 | 鈴木 治雄 | 多段式梯子 |
JPS5667085A (en) * | 1979-10-31 | 1981-06-05 | Matsushita Electric Works Ltd | Expansion laddar |
JPS61187900U (en, 2012) * | 1985-05-16 | 1986-11-22 | ||
JPH052799Y2 (en, 2012) * | 1986-06-20 | 1993-01-22 |
-
1990
- 1990-05-28 JP JP1990054597U patent/JP2522548Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0413800U (en, 2012) | 1992-02-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |