JPH0446187U - - Google Patents
Info
- Publication number
- JPH0446187U JPH0446187U JP8522390U JP8522390U JPH0446187U JP H0446187 U JPH0446187 U JP H0446187U JP 8522390 U JP8522390 U JP 8522390U JP 8522390 U JP8522390 U JP 8522390U JP H0446187 U JPH0446187 U JP H0446187U
- Authority
- JP
- Japan
- Prior art keywords
- cutting bit
- headring
- outer diameter
- shaft
- protrusion
- 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
- 230000037431 insertion Effects 0.000 claims 2
- 238000003780 insertion Methods 0.000 claims 2
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8522390U JPH07552Y2 (ja) | 1990-08-10 | 1990-08-10 | 管推進装置の切削具 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8522390U JPH07552Y2 (ja) | 1990-08-10 | 1990-08-10 | 管推進装置の切削具 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0446187U true JPH0446187U (en, 2012) | 1992-04-20 |
| JPH07552Y2 JPH07552Y2 (ja) | 1995-01-11 |
Family
ID=31816456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8522390U Expired - Lifetime JPH07552Y2 (ja) | 1990-08-10 | 1990-08-10 | 管推進装置の切削具 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07552Y2 (en, 2012) |
-
1990
- 1990-08-10 JP JP8522390U patent/JPH07552Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07552Y2 (ja) | 1995-01-11 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |