JPH0233891U - - Google Patents
Info
- Publication number
- JPH0233891U JPH0233891U JP11312988U JP11312988U JPH0233891U JP H0233891 U JPH0233891 U JP H0233891U JP 11312988 U JP11312988 U JP 11312988U JP 11312988 U JP11312988 U JP 11312988U JP H0233891 U JPH0233891 U JP H0233891U
- Authority
- JP
- Japan
- Prior art keywords
- receiving recess
- upright portion
- cutter bit
- bit
- approximately
- 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.)
- Granted
Links
- 238000005553 drilling Methods 0.000 claims description 2
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11312988U JPH0519434Y2 (en:Method) | 1988-08-29 | 1988-08-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11312988U JPH0519434Y2 (en:Method) | 1988-08-29 | 1988-08-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0233891U true JPH0233891U (en:Method) | 1990-03-02 |
| JPH0519434Y2 JPH0519434Y2 (en:Method) | 1993-05-21 |
Family
ID=31352695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11312988U Expired - Lifetime JPH0519434Y2 (en:Method) | 1988-08-29 | 1988-08-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0519434Y2 (en:Method) |
-
1988
- 1988-08-29 JP JP11312988U patent/JPH0519434Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0519434Y2 (en:Method) | 1993-05-21 |