JPS4990602A - - Google Patents
Info
- Publication number
- JPS4990602A JPS4990602A JP12729372A JP12729372A JPS4990602A JP S4990602 A JPS4990602 A JP S4990602A JP 12729372 A JP12729372 A JP 12729372A JP 12729372 A JP12729372 A JP 12729372A JP S4990602 A JPS4990602 A JP S4990602A
- 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.)
- Pending
Links
Landscapes
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12729372A JPS4990602A (de) | 1972-12-20 | 1972-12-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12729372A JPS4990602A (de) | 1972-12-20 | 1972-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4990602A true JPS4990602A (de) | 1974-08-29 |
Family
ID=14956364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12729372A Pending JPS4990602A (de) | 1972-12-20 | 1972-12-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS4990602A (de) |
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1972
- 1972-12-20 JP JP12729372A patent/JPS4990602A/ja active Pending