JPS5411801A - Reverse sheath technique for drilling - Google Patents
Reverse sheath technique for drillingInfo
- Publication number
- JPS5411801A JPS5411801A JP7762877A JP7762877A JPS5411801A JP S5411801 A JPS5411801 A JP S5411801A JP 7762877 A JP7762877 A JP 7762877A JP 7762877 A JP7762877 A JP 7762877A JP S5411801 A JPS5411801 A JP S5411801A
- Authority
- JP
- Japan
- Prior art keywords
- drilling
- reverse sheath
- sheath technique
- technique
- reverse
- 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 |
---|---|---|---|
JP7762877A JPS5411801A (en) | 1977-06-29 | 1977-06-29 | Reverse sheath technique for drilling |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7762877A JPS5411801A (en) | 1977-06-29 | 1977-06-29 | Reverse sheath technique for drilling |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5411801A true JPS5411801A (en) | 1979-01-29 |
Family
ID=13639162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7762877A Pending JPS5411801A (en) | 1977-06-29 | 1977-06-29 | Reverse sheath technique for drilling |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5411801A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57169191A (en) * | 1981-04-10 | 1982-10-18 | Taisei Kiso Sekkei Kk | Self-boring method and apparatus |
-
1977
- 1977-06-29 JP JP7762877A patent/JPS5411801A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57169191A (en) * | 1981-04-10 | 1982-10-18 | Taisei Kiso Sekkei Kk | Self-boring method and apparatus |
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