JPH0393895U - - Google Patents
Info
- Publication number
- JPH0393895U JPH0393895U JP11161190U JP11161190U JPH0393895U JP H0393895 U JPH0393895 U JP H0393895U JP 11161190 U JP11161190 U JP 11161190U JP 11161190 U JP11161190 U JP 11161190U JP H0393895 U JPH0393895 U JP H0393895U
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- casing pipe
- casing
- casings
- tip
- 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 2
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990111611U JPH0415825Y2 (US06265458-20010724-C00056.png) | 1990-10-26 | 1990-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990111611U JPH0415825Y2 (US06265458-20010724-C00056.png) | 1990-10-26 | 1990-10-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0393895U true JPH0393895U (US06265458-20010724-C00056.png) | 1991-09-25 |
| JPH0415825Y2 JPH0415825Y2 (US06265458-20010724-C00056.png) | 1992-04-09 |
Family
ID=31660082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990111611U Expired JPH0415825Y2 (US06265458-20010724-C00056.png) | 1990-10-26 | 1990-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0415825Y2 (US06265458-20010724-C00056.png) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3395941A (en) * | 1965-07-29 | 1968-08-06 | Salem Tool Co | Rotary auger mining barrel head |
| JPS4521086Y1 (US06265458-20010724-C00056.png) * | 1967-02-16 | 1970-08-22 | ||
| JPS50115702U (US06265458-20010724-C00056.png) * | 1974-03-04 | 1975-09-20 | ||
| US3999620A (en) * | 1975-05-30 | 1976-12-28 | Watson, Incorporated | Core barrel |
| JPS52100803U (US06265458-20010724-C00056.png) * | 1976-01-30 | 1977-07-30 | ||
| JPS54141101U (US06265458-20010724-C00056.png) * | 1978-03-25 | 1979-10-01 | ||
| JPS56119030A (en) * | 1980-02-23 | 1981-09-18 | Hajime Matsuzawa | Performance of work for placing an embedded pile and device for carrying out the said performance |
-
1990
- 1990-10-26 JP JP1990111611U patent/JPH0415825Y2/ja not_active Expired
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3395941A (en) * | 1965-07-29 | 1968-08-06 | Salem Tool Co | Rotary auger mining barrel head |
| JPS4521086Y1 (US06265458-20010724-C00056.png) * | 1967-02-16 | 1970-08-22 | ||
| JPS50115702U (US06265458-20010724-C00056.png) * | 1974-03-04 | 1975-09-20 | ||
| US3999620A (en) * | 1975-05-30 | 1976-12-28 | Watson, Incorporated | Core barrel |
| JPS52100803U (US06265458-20010724-C00056.png) * | 1976-01-30 | 1977-07-30 | ||
| JPS54141101U (US06265458-20010724-C00056.png) * | 1978-03-25 | 1979-10-01 | ||
| JPS56119030A (en) * | 1980-02-23 | 1981-09-18 | Hajime Matsuzawa | Performance of work for placing an embedded pile and device for carrying out the said performance |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0415825Y2 (US06265458-20010724-C00056.png) | 1992-04-09 |
