JPS57193692A - Underwater boring device - Google Patents
Underwater boring deviceInfo
- Publication number
- JPS57193692A JPS57193692A JP7843581A JP7843581A JPS57193692A JP S57193692 A JPS57193692 A JP S57193692A JP 7843581 A JP7843581 A JP 7843581A JP 7843581 A JP7843581 A JP 7843581A JP S57193692 A JPS57193692 A JP S57193692A
- Authority
- JP
- Japan
- Prior art keywords
- boring device
- underwater
- underwater boring
- 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 |
---|---|---|---|
JP7843581A JPS57193692A (en) | 1981-05-22 | 1981-05-22 | Underwater boring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7843581A JPS57193692A (en) | 1981-05-22 | 1981-05-22 | Underwater boring device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57193692A true JPS57193692A (en) | 1982-11-29 |
JPS6234913B2 JPS6234913B2 (en) | 1987-07-29 |
Family
ID=13661959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7843581A Granted JPS57193692A (en) | 1981-05-22 | 1981-05-22 | Underwater boring device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57193692A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012172376A (en) * | 2011-02-21 | 2012-09-10 | Chuo Kaihatsu Kk | Tilt-free drilling device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5220922A (en) * | 1975-07-05 | 1977-02-17 | Daido Steel Co Ltd | Free cutting ferrite stainless steel |
-
1981
- 1981-05-22 JP JP7843581A patent/JPS57193692A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5220922A (en) * | 1975-07-05 | 1977-02-17 | Daido Steel Co Ltd | Free cutting ferrite stainless steel |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012172376A (en) * | 2011-02-21 | 2012-09-10 | Chuo Kaihatsu Kk | Tilt-free drilling device |
Also Published As
Publication number | Publication date |
---|---|
JPS6234913B2 (en) | 1987-07-29 |
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