JPH02139011U - - Google Patents
Info
- Publication number
- JPH02139011U JPH02139011U JP4880089U JP4880089U JPH02139011U JP H02139011 U JPH02139011 U JP H02139011U JP 4880089 U JP4880089 U JP 4880089U JP 4880089 U JP4880089 U JP 4880089U JP H02139011 U JPH02139011 U JP H02139011U
- Authority
- JP
- Japan
- Prior art keywords
- drill
- pipe
- positioning part
- pipe positioning
- 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
- 238000005553 drilling Methods 0.000 claims description 2
- 230000000452 restraining effect Effects 0.000 claims 1
Landscapes
- Drilling And Boring (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4880089U JPH02139011U (en17) | 1989-04-27 | 1989-04-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4880089U JPH02139011U (en17) | 1989-04-27 | 1989-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02139011U true JPH02139011U (en17) | 1990-11-20 |
Family
ID=31565936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4880089U Pending JPH02139011U (en17) | 1989-04-27 | 1989-04-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02139011U (en17) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0160813B2 (en17) * | 1982-02-26 | 1989-12-26 | Intaanashonaru Bijinesu Mashiinzu Corp |
-
1989
- 1989-04-27 JP JP4880089U patent/JPH02139011U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0160813B2 (en17) * | 1982-02-26 | 1989-12-26 | Intaanashonaru Bijinesu Mashiinzu Corp |