JPH01141853U - - Google Patents
Info
- Publication number
- JPH01141853U JPH01141853U JP3636788U JP3636788U JPH01141853U JP H01141853 U JPH01141853 U JP H01141853U JP 3636788 U JP3636788 U JP 3636788U JP 3636788 U JP3636788 U JP 3636788U JP H01141853 U JPH01141853 U JP H01141853U
- Authority
- JP
- Japan
- Prior art keywords
- bending
- sand
- earth
- control mechanism
- directional control
- 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
- 238000005452 bending Methods 0.000 claims 3
- 239000004576 sand Substances 0.000 claims 2
- 239000013013 elastic material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3636788U JPH01141853U (cs) | 1988-03-22 | 1988-03-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3636788U JPH01141853U (cs) | 1988-03-22 | 1988-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01141853U true JPH01141853U (cs) | 1989-09-28 |
Family
ID=31262976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3636788U Pending JPH01141853U (cs) | 1988-03-22 | 1988-03-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01141853U (cs) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS612158A (ja) * | 1984-06-14 | 1986-01-08 | Canon Inc | 電子写真感光体 |
-
1988
- 1988-03-22 JP JP3636788U patent/JPH01141853U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS612158A (ja) * | 1984-06-14 | 1986-01-08 | Canon Inc | 電子写真感光体 |