JPS5766290A - Screw reinforced boring rod - Google Patents
Screw reinforced boring rodInfo
- Publication number
- JPS5766290A JPS5766290A JP13955480A JP13955480A JPS5766290A JP S5766290 A JPS5766290 A JP S5766290A JP 13955480 A JP13955480 A JP 13955480A JP 13955480 A JP13955480 A JP 13955480A JP S5766290 A JPS5766290 A JP S5766290A
- Authority
- JP
- Japan
- Prior art keywords
- boring rod
- screw reinforced
- reinforced
- screw
- boring
- 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
- Earth Drilling (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13955480A JPS5766290A (en) | 1980-10-06 | 1980-10-06 | Screw reinforced boring rod |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13955480A JPS5766290A (en) | 1980-10-06 | 1980-10-06 | Screw reinforced boring rod |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5766290A true JPS5766290A (en) | 1982-04-22 |
JPS628595B2 JPS628595B2 (en) | 1987-02-24 |
Family
ID=15247962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13955480A Granted JPS5766290A (en) | 1980-10-06 | 1980-10-06 | Screw reinforced boring rod |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5766290A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5252982U (en) * | 1975-10-15 | 1977-04-15 | ||
JPS53132447A (en) * | 1977-04-25 | 1978-11-18 | Hughes Tool Co | Tool joint subject to surface hardening that has smooth surface |
-
1980
- 1980-10-06 JP JP13955480A patent/JPS5766290A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5252982U (en) * | 1975-10-15 | 1977-04-15 | ||
JPS53132447A (en) * | 1977-04-25 | 1978-11-18 | Hughes Tool Co | Tool joint subject to surface hardening that has smooth surface |
Also Published As
Publication number | Publication date |
---|---|
JPS628595B2 (en) | 1987-02-24 |
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