JPH0412490U - - Google Patents
Info
- Publication number
- JPH0412490U JPH0412490U JP5179990U JP5179990U JPH0412490U JP H0412490 U JPH0412490 U JP H0412490U JP 5179990 U JP5179990 U JP 5179990U JP 5179990 U JP5179990 U JP 5179990U JP H0412490 U JPH0412490 U JP H0412490U
- Authority
- JP
- Japan
- Prior art keywords
- inner cylinder
- coil spring
- boom
- backstop
- silent
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Jib Cranes (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5179990U JPH0412490U (en]) | 1990-05-18 | 1990-05-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5179990U JPH0412490U (en]) | 1990-05-18 | 1990-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0412490U true JPH0412490U (en]) | 1992-01-31 |
Family
ID=31571549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5179990U Pending JPH0412490U (en]) | 1990-05-18 | 1990-05-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0412490U (en]) |
-
1990
- 1990-05-18 JP JP5179990U patent/JPH0412490U/ja active Pending