JPS5021772B2 - - Google Patents
Info
- Publication number
- JPS5021772B2 JPS5021772B2 JP9570472A JP9570472A JPS5021772B2 JP S5021772 B2 JPS5021772 B2 JP S5021772B2 JP 9570472 A JP9570472 A JP 9570472A JP 9570472 A JP9570472 A JP 9570472A JP S5021772 B2 JPS5021772 B2 JP S5021772B2
- 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 |
|---|---|---|---|
| JP9570472A JPS5021772B2 (en:Method) | 1972-09-22 | 1972-09-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9570472A JPS5021772B2 (en:Method) | 1972-09-22 | 1972-09-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4952424A JPS4952424A (en:Method) | 1974-05-21 |
| JPS5021772B2 true JPS5021772B2 (en:Method) | 1975-07-25 |
Family
ID=14144876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9570472A Expired JPS5021772B2 (en:Method) | 1972-09-22 | 1972-09-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5021772B2 (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS552125A (en) * | 1978-06-21 | 1980-01-09 | Nippon Telegraph & Telephone | Device for hermetically moving earth and sand |
-
1972
- 1972-09-22 JP JP9570472A patent/JPS5021772B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4952424A (en:Method) | 1974-05-21 |