JPH0538155Y2 - - Google Patents
Info
- Publication number
- JPH0538155Y2 JPH0538155Y2 JP4026889U JP4026889U JPH0538155Y2 JP H0538155 Y2 JPH0538155 Y2 JP H0538155Y2 JP 4026889 U JP4026889 U JP 4026889U JP 4026889 U JP4026889 U JP 4026889U JP H0538155 Y2 JPH0538155 Y2 JP H0538155Y2
- Authority
- JP
- Japan
- Prior art keywords
- auxiliary blade
- auger
- stopper
- height
- base
- 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.)
- Expired - Lifetime
Links
- 238000009412 basement excavation Methods 0.000 claims description 18
- 238000005553 drilling Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4026889U JPH0538155Y2 (enrdf_load_stackoverflow) | 1989-04-05 | 1989-04-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4026889U JPH0538155Y2 (enrdf_load_stackoverflow) | 1989-04-05 | 1989-04-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02132789U JPH02132789U (enrdf_load_stackoverflow) | 1990-11-05 |
| JPH0538155Y2 true JPH0538155Y2 (enrdf_load_stackoverflow) | 1993-09-27 |
Family
ID=31549914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4026889U Expired - Lifetime JPH0538155Y2 (enrdf_load_stackoverflow) | 1989-04-05 | 1989-04-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0538155Y2 (enrdf_load_stackoverflow) |
-
1989
- 1989-04-05 JP JP4026889U patent/JPH0538155Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02132789U (enrdf_load_stackoverflow) | 1990-11-05 |
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