JPS50117202A - - Google Patents
Info
- Publication number
- JPS50117202A JPS50117202A JP2120774A JP2120774A JPS50117202A JP S50117202 A JPS50117202 A JP S50117202A JP 2120774 A JP2120774 A JP 2120774A JP 2120774 A JP2120774 A JP 2120774A JP S50117202 A JPS50117202 A JP S50117202A
- 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 |
|---|---|---|---|
| JP2120774A JPS5241961B2 ( ) | 1974-02-22 | 1974-02-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2120774A JPS5241961B2 ( ) | 1974-02-22 | 1974-02-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS50117202A true JPS50117202A ( ) | 1975-09-13 |
| JPS5241961B2 JPS5241961B2 ( ) | 1977-10-21 |
Family
ID=12048531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2120774A Expired JPS5241961B2 ( ) | 1974-02-22 | 1974-02-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5241961B2 ( ) |
-
1974
- 1974-02-22 JP JP2120774A patent/JPS5241961B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5241961B2 ( ) | 1977-10-21 |