JPS63121693U - - Google Patents
Info
- Publication number
- JPS63121693U JPS63121693U JP1311587U JP1311587U JPS63121693U JP S63121693 U JPS63121693 U JP S63121693U JP 1311587 U JP1311587 U JP 1311587U JP 1311587 U JP1311587 U JP 1311587U JP S63121693 U JPS63121693 U JP S63121693U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- guide shell
- angle
- angle detector
- drilling machine
- 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
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1311587U JPH061667Y2 (ja) | 1987-01-31 | 1987-01-31 | さく孔機の角度保持装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1311587U JPH061667Y2 (ja) | 1987-01-31 | 1987-01-31 | さく孔機の角度保持装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63121693U true JPS63121693U (cs) | 1988-08-08 |
| JPH061667Y2 JPH061667Y2 (ja) | 1994-01-12 |
Family
ID=30801875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1311587U Expired - Lifetime JPH061667Y2 (ja) | 1987-01-31 | 1987-01-31 | さく孔機の角度保持装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH061667Y2 (cs) |
-
1987
- 1987-01-31 JP JP1311587U patent/JPH061667Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH061667Y2 (ja) | 1994-01-12 |
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