JPH0169894U - - Google Patents
Info
- Publication number
- JPH0169894U JPH0169894U JP1987162290U JP16229087U JPH0169894U JP H0169894 U JPH0169894 U JP H0169894U JP 1987162290 U JP1987162290 U JP 1987162290U JP 16229087 U JP16229087 U JP 16229087U JP H0169894 U JPH0169894 U JP H0169894U
- Authority
- JP
- Japan
- Prior art keywords
- bit
- mounting
- drilling
- tip
- bolt
- 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
- 230000037431 insertion Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987162290U JPH0169894U (en, 2012) | 1987-10-22 | 1987-10-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987162290U JPH0169894U (en, 2012) | 1987-10-22 | 1987-10-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0169894U true JPH0169894U (en, 2012) | 1989-05-09 |
Family
ID=31445980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987162290U Pending JPH0169894U (en, 2012) | 1987-10-22 | 1987-10-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0169894U (en, 2012) |
-
1987
- 1987-10-22 JP JP1987162290U patent/JPH0169894U/ja active Pending