JPH0444546Y2 - - Google Patents
Info
- Publication number
- JPH0444546Y2 JPH0444546Y2 JP3883185U JP3883185U JPH0444546Y2 JP H0444546 Y2 JPH0444546 Y2 JP H0444546Y2 JP 3883185 U JP3883185 U JP 3883185U JP 3883185 U JP3883185 U JP 3883185U JP H0444546 Y2 JPH0444546 Y2 JP H0444546Y2
- Authority
- JP
- Japan
- Prior art keywords
- boom
- pulley
- pulleys
- extension
- bracket
- 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
- 238000004904 shortening Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 description 11
- 238000005452 bending Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Jib Cranes (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3883185U JPH0444546Y2 (fr) | 1985-03-20 | 1985-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3883185U JPH0444546Y2 (fr) | 1985-03-20 | 1985-03-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61157587U JPS61157587U (fr) | 1986-09-30 |
| JPH0444546Y2 true JPH0444546Y2 (fr) | 1992-10-20 |
Family
ID=30546201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3883185U Expired JPH0444546Y2 (fr) | 1985-03-20 | 1985-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0444546Y2 (fr) |
-
1985
- 1985-03-20 JP JP3883185U patent/JPH0444546Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61157587U (fr) | 1986-09-30 |
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