JPH0179690U - - Google Patents
Info
- Publication number
- JPH0179690U JPH0179690U JP1987173620U JP17362087U JPH0179690U JP H0179690 U JPH0179690 U JP H0179690U JP 1987173620 U JP1987173620 U JP 1987173620U JP 17362087 U JP17362087 U JP 17362087U JP H0179690 U JPH0179690 U JP H0179690U
- Authority
- JP
- Japan
- Prior art keywords
- rotating shaft
- cylindrical body
- cylinder
- end surface
- center
- 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
- 238000005553 drilling Methods 0.000 claims 2
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987173620U JPH0179690U (ro) | 1987-11-12 | 1987-11-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987173620U JPH0179690U (ro) | 1987-11-12 | 1987-11-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0179690U true JPH0179690U (ro) | 1989-05-29 |
Family
ID=31465520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987173620U Pending JPH0179690U (ro) | 1987-11-12 | 1987-11-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0179690U (ro) |
-
1987
- 1987-11-12 JP JP1987173620U patent/JPH0179690U/ja active Pending