JPH0362190U - - Google Patents
Info
- Publication number
- JPH0362190U JPH0362190U JP12422489U JP12422489U JPH0362190U JP H0362190 U JPH0362190 U JP H0362190U JP 12422489 U JP12422489 U JP 12422489U JP 12422489 U JP12422489 U JP 12422489U JP H0362190 U JPH0362190 U JP H0362190U
- Authority
- JP
- Japan
- Prior art keywords
- bit
- drilling
- welded
- recess
- drilling tube
- 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 11
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989124224U JPH0726477Y2 (ja) | 1989-10-24 | 1989-10-24 | 削孔用ビット |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989124224U JPH0726477Y2 (ja) | 1989-10-24 | 1989-10-24 | 削孔用ビット |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0362190U true JPH0362190U (es) | 1991-06-18 |
| JPH0726477Y2 JPH0726477Y2 (ja) | 1995-06-14 |
Family
ID=31672157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989124224U Expired - Lifetime JPH0726477Y2 (ja) | 1989-10-24 | 1989-10-24 | 削孔用ビット |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0726477Y2 (es) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007321325A (ja) * | 2006-05-31 | 2007-12-13 | Mieko Saito | ポケット付き首巻き |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4485705B2 (ja) * | 2001-04-20 | 2010-06-23 | 株式会社タンガロイ | 掘削用ビット及びケーシングカッタ |
| JP4485706B2 (ja) * | 2001-04-24 | 2010-06-23 | 株式会社タンガロイ | 両方向掘削ビット及びケーシングカッタ |
| JP4514359B2 (ja) * | 2001-04-26 | 2010-07-28 | 株式会社タンガロイ | 掘削用ビット |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62176286U (es) * | 1986-04-25 | 1987-11-09 |
-
1989
- 1989-10-24 JP JP1989124224U patent/JPH0726477Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62176286U (es) * | 1986-04-25 | 1987-11-09 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007321325A (ja) * | 2006-05-31 | 2007-12-13 | Mieko Saito | ポケット付き首巻き |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0726477Y2 (ja) | 1995-06-14 |