JPS6283470U - - Google Patents
Info
- Publication number
- JPS6283470U JPS6283470U JP17479585U JP17479585U JPS6283470U JP S6283470 U JPS6283470 U JP S6283470U JP 17479585 U JP17479585 U JP 17479585U JP 17479585 U JP17479585 U JP 17479585U JP S6283470 U JPS6283470 U JP S6283470U
- Authority
- JP
- Japan
- Prior art keywords
- hole
- ayu
- tomo
- drill
- string
- 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
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17479585U JPS6283470U (en, 2012) | 1985-11-13 | 1985-11-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17479585U JPS6283470U (en, 2012) | 1985-11-13 | 1985-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6283470U true JPS6283470U (en, 2012) | 1987-05-28 |
Family
ID=31113516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17479585U Pending JPS6283470U (en, 2012) | 1985-11-13 | 1985-11-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6283470U (en, 2012) |
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1985
- 1985-11-13 JP JP17479585U patent/JPS6283470U/ja active Pending