JPS4978307A - - Google Patents
Info
- Publication number
- JPS4978307A JPS4978307A JP12092072A JP12092072A JPS4978307A JP S4978307 A JPS4978307 A JP S4978307A JP 12092072 A JP12092072 A JP 12092072A JP 12092072 A JP12092072 A JP 12092072A JP S4978307 A JPS4978307 A JP S4978307A
- 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.)
- Granted
Links
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12092072A JPS5219681B2 (https=) | 1972-12-02 | 1972-12-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12092072A JPS5219681B2 (https=) | 1972-12-02 | 1972-12-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4978307A true JPS4978307A (https=) | 1974-07-29 |
| JPS5219681B2 JPS5219681B2 (https=) | 1977-05-30 |
Family
ID=14798248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12092072A Expired JPS5219681B2 (https=) | 1972-12-02 | 1972-12-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5219681B2 (https=) |
-
1972
- 1972-12-02 JP JP12092072A patent/JPS5219681B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5219681B2 (https=) | 1977-05-30 |