JPS4910512A - - Google Patents
Info
- Publication number
- JPS4910512A JPS4910512A JP5462772A JP5462772A JPS4910512A JP S4910512 A JPS4910512 A JP S4910512A JP 5462772 A JP5462772 A JP 5462772A JP 5462772 A JP5462772 A JP 5462772A JP S4910512 A JPS4910512 A JP S4910512A
- 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
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47054627A JPS517926B2 (en:Method) | 1972-05-31 | 1972-05-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47054627A JPS517926B2 (en:Method) | 1972-05-31 | 1972-05-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4910512A true JPS4910512A (en:Method) | 1974-01-30 |
| JPS517926B2 JPS517926B2 (en:Method) | 1976-03-12 |
Family
ID=12975973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP47054627A Expired JPS517926B2 (en:Method) | 1972-05-31 | 1972-05-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS517926B2 (en:Method) |
-
1972
- 1972-05-31 JP JP47054627A patent/JPS517926B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS517926B2 (en:Method) | 1976-03-12 |