JPH02148091U - - Google Patents
Info
- Publication number
- JPH02148091U JPH02148091U JP5724789U JP5724789U JPH02148091U JP H02148091 U JPH02148091 U JP H02148091U JP 5724789 U JP5724789 U JP 5724789U JP 5724789 U JP5724789 U JP 5724789U JP H02148091 U JPH02148091 U JP H02148091U
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- tip
- utility
- attached
- construction method
- 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
- 238000010276 construction Methods 0.000 claims 1
- 238000009412 basement excavation Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5724789U JPH0538154Y2 (en, 2012) | 1989-05-18 | 1989-05-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5724789U JPH0538154Y2 (en, 2012) | 1989-05-18 | 1989-05-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02148091U true JPH02148091U (en, 2012) | 1990-12-17 |
| JPH0538154Y2 JPH0538154Y2 (en, 2012) | 1993-09-27 |
Family
ID=31581786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5724789U Expired - Lifetime JPH0538154Y2 (en, 2012) | 1989-05-18 | 1989-05-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0538154Y2 (en, 2012) |
-
1989
- 1989-05-18 JP JP5724789U patent/JPH0538154Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0538154Y2 (en, 2012) | 1993-09-27 |