JPH032091U - - Google Patents
Info
- Publication number
- JPH032091U JPH032091U JP5967989U JP5967989U JPH032091U JP H032091 U JPH032091 U JP H032091U JP 5967989 U JP5967989 U JP 5967989U JP 5967989 U JP5967989 U JP 5967989U JP H032091 U JPH032091 U JP H032091U
- Authority
- JP
- Japan
- Prior art keywords
- base material
- plate
- shaped base
- shaped
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 230000001154 acute effect Effects 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989059679U JPH0724477Y2 (ja) | 1989-05-25 | 1989-05-25 | 障害物掘削刃 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989059679U JPH0724477Y2 (ja) | 1989-05-25 | 1989-05-25 | 障害物掘削刃 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH032091U true JPH032091U (US08087162-20120103-C00010.png) | 1991-01-10 |
| JPH0724477Y2 JPH0724477Y2 (ja) | 1995-06-05 |
Family
ID=31586388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989059679U Expired - Lifetime JPH0724477Y2 (ja) | 1989-05-25 | 1989-05-25 | 障害物掘削刃 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0724477Y2 (US08087162-20120103-C00010.png) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007284923A (ja) * | 2006-04-13 | 2007-11-01 | Taisei Corp | カッタビット |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5733439A (en) * | 1980-07-31 | 1982-02-23 | Fujitsu Ltd | Working method of magnetic disk substrate |
-
1989
- 1989-05-25 JP JP1989059679U patent/JPH0724477Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5733439A (en) * | 1980-07-31 | 1982-02-23 | Fujitsu Ltd | Working method of magnetic disk substrate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007284923A (ja) * | 2006-04-13 | 2007-11-01 | Taisei Corp | カッタビット |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0724477Y2 (ja) | 1995-06-05 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |