JPH0297489U - - Google Patents
Info
- Publication number
- JPH0297489U JPH0297489U JP739489U JP739489U JPH0297489U JP H0297489 U JPH0297489 U JP H0297489U JP 739489 U JP739489 U JP 739489U JP 739489 U JP739489 U JP 739489U JP H0297489 U JPH0297489 U JP H0297489U
- Authority
- JP
- Japan
- Prior art keywords
- rod
- shaft hole
- main body
- diameter shaft
- tip
- 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
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 239000011435 rock Substances 0.000 claims 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP739489U JPH0297489U (fi) | 1989-01-24 | 1989-01-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP739489U JPH0297489U (fi) | 1989-01-24 | 1989-01-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0297489U true JPH0297489U (fi) | 1990-08-02 |
Family
ID=31212364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP739489U Pending JPH0297489U (fi) | 1989-01-24 | 1989-01-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0297489U (fi) |
-
1989
- 1989-01-24 JP JP739489U patent/JPH0297489U/ja active Pending