JPS63112590U - - Google Patents
Info
- Publication number
- JPS63112590U JPS63112590U JP450587U JP450587U JPS63112590U JP S63112590 U JPS63112590 U JP S63112590U JP 450587 U JP450587 U JP 450587U JP 450587 U JP450587 U JP 450587U JP S63112590 U JPS63112590 U JP S63112590U
- Authority
- JP
- Japan
- Prior art keywords
- claws
- rotary
- excavating
- rotational direction
- bit
- 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.)
- Pending
Links
- 210000000078 claw Anatomy 0.000 claims description 12
- 238000009412 basement excavation Methods 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims 2
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP450587U JPS63112590U (th) | 1987-01-16 | 1987-01-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP450587U JPS63112590U (th) | 1987-01-16 | 1987-01-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63112590U true JPS63112590U (th) | 1988-07-20 |
Family
ID=30785226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP450587U Pending JPS63112590U (th) | 1987-01-16 | 1987-01-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63112590U (th) |
-
1987
- 1987-01-16 JP JP450587U patent/JPS63112590U/ja active Pending
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