JPS5217652B2 - - Google Patents
Info
- Publication number
- JPS5217652B2 JPS5217652B2 JP12549872A JP12549872A JPS5217652B2 JP S5217652 B2 JPS5217652 B2 JP S5217652B2 JP 12549872 A JP12549872 A JP 12549872A JP 12549872 A JP12549872 A JP 12549872A JP S5217652 B2 JPS5217652 B2 JP S5217652B2
- 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
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12549872A JPS5217652B2 (en:Method) | 1972-12-14 | 1972-12-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12549872A JPS5217652B2 (en:Method) | 1972-12-14 | 1972-12-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4982123A JPS4982123A (en:Method) | 1974-08-07 |
| JPS5217652B2 true JPS5217652B2 (en:Method) | 1977-05-17 |
Family
ID=14911580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12549872A Expired JPS5217652B2 (en:Method) | 1972-12-14 | 1972-12-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5217652B2 (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS535813A (en) * | 1976-07-05 | 1978-01-19 | Minoru Seya | Earth drilling apparatus |
| JPS5435009U (en:Method) * | 1977-03-25 | 1979-03-07 |
-
1972
- 1972-12-14 JP JP12549872A patent/JPS5217652B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4982123A (en:Method) | 1974-08-07 |