JPH02114409U - - Google Patents
Info
- Publication number
- JPH02114409U JPH02114409U JP2390789U JP2390789U JPH02114409U JP H02114409 U JPH02114409 U JP H02114409U JP 2390789 U JP2390789 U JP 2390789U JP 2390789 U JP2390789 U JP 2390789U JP H02114409 U JPH02114409 U JP H02114409U
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- hole
- pipe
- scraping rod
- drilling machine
- 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 5
- 238000007790 scraping Methods 0.000 claims 2
- 239000002699 waste material Substances 0.000 claims 1
Landscapes
- Drilling And Boring (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2390789U JPH02114409U (en]) | 1989-03-01 | 1989-03-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2390789U JPH02114409U (en]) | 1989-03-01 | 1989-03-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02114409U true JPH02114409U (en]) | 1990-09-13 |
Family
ID=31243296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2390789U Pending JPH02114409U (en]) | 1989-03-01 | 1989-03-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02114409U (en]) |
-
1989
- 1989-03-01 JP JP2390789U patent/JPH02114409U/ja active Pending
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