JPS531563B2 - - Google Patents
Info
- Publication number
- JPS531563B2 JPS531563B2 JP7257272A JP7257272A JPS531563B2 JP S531563 B2 JPS531563 B2 JP S531563B2 JP 7257272 A JP7257272 A JP 7257272A JP 7257272 A JP7257272 A JP 7257272A JP S531563 B2 JPS531563 B2 JP S531563B2
- Authority
- JP
- Japan
- 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.)
- Expired
Links
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7257272A JPS531563B2 (en:Method) | 1972-07-21 | 1972-07-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7257272A JPS531563B2 (en:Method) | 1972-07-21 | 1972-07-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4932401A JPS4932401A (en:Method) | 1974-03-25 |
| JPS531563B2 true JPS531563B2 (en:Method) | 1978-01-20 |
Family
ID=13493207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7257272A Expired JPS531563B2 (en:Method) | 1972-07-21 | 1972-07-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS531563B2 (en:Method) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5311450U (en:Method) * | 1976-07-13 | 1978-01-31 |
-
1972
- 1972-07-21 JP JP7257272A patent/JPS531563B2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5311450U (en:Method) * | 1976-07-13 | 1978-01-31 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4932401A (en:Method) | 1974-03-25 |