JPS6391589U - - Google Patents
Info
- Publication number
- JPS6391589U JPS6391589U JP18309486U JP18309486U JPS6391589U JP S6391589 U JPS6391589 U JP S6391589U JP 18309486 U JP18309486 U JP 18309486U JP 18309486 U JP18309486 U JP 18309486U JP S6391589 U JPS6391589 U JP S6391589U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- angle information
- swing
- drilling
- guide shell
- 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
- 238000005553 drilling Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18309486U JPH0613901Y2 (ja) | 1986-11-28 | 1986-11-28 | さく孔方向表示装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18309486U JPH0613901Y2 (ja) | 1986-11-28 | 1986-11-28 | さく孔方向表示装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6391589U true JPS6391589U (enrdf_load_stackoverflow) | 1988-06-14 |
| JPH0613901Y2 JPH0613901Y2 (ja) | 1994-04-13 |
Family
ID=31129508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18309486U Expired - Lifetime JPH0613901Y2 (ja) | 1986-11-28 | 1986-11-28 | さく孔方向表示装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0613901Y2 (enrdf_load_stackoverflow) |
-
1986
- 1986-11-28 JP JP18309486U patent/JPH0613901Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0613901Y2 (ja) | 1994-04-13 |
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