JPS5620437B2 - - Google Patents
Info
- Publication number
- JPS5620437B2 JPS5620437B2 JP4467173A JP4467173A JPS5620437B2 JP S5620437 B2 JPS5620437 B2 JP S5620437B2 JP 4467173 A JP4467173 A JP 4467173A JP 4467173 A JP4467173 A JP 4467173A JP S5620437 B2 JPS5620437 B2 JP S5620437B2
- 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)
- Joints Allowing Movement (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4467173A JPS5620437B2 (en) | 1973-04-21 | 1973-04-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4467173A JPS5620437B2 (en) | 1973-04-21 | 1973-04-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS49130518A JPS49130518A (en) | 1974-12-13 |
| JPS5620437B2 true JPS5620437B2 (en) | 1981-05-13 |
Family
ID=12697895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4467173A Expired JPS5620437B2 (en) | 1973-04-21 | 1973-04-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5620437B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58207491A (en) * | 1982-05-26 | 1983-12-02 | 米井建機株式会社 | Shaft bit drilling method and apparatus |
-
1973
- 1973-04-21 JP JP4467173A patent/JPS5620437B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS49130518A (en) | 1974-12-13 |