JPS4938278A - - Google Patents
Info
- Publication number
- JPS4938278A JPS4938278A JP8178772A JP8178772A JPS4938278A JP S4938278 A JPS4938278 A JP S4938278A JP 8178772 A JP8178772 A JP 8178772A JP 8178772 A JP8178772 A JP 8178772A JP S4938278 A JPS4938278 A JP S4938278A
- 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
- Drilling And Boring (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8178772A JPS554534B2 (en:Method) | 1972-08-17 | 1972-08-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8178772A JPS554534B2 (en:Method) | 1972-08-17 | 1972-08-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4938278A true JPS4938278A (en:Method) | 1974-04-09 |
| JPS554534B2 JPS554534B2 (en:Method) | 1980-01-30 |
Family
ID=13756184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8178772A Expired JPS554534B2 (en:Method) | 1972-08-17 | 1972-08-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS554534B2 (en:Method) |
-
1972
- 1972-08-17 JP JP8178772A patent/JPS554534B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS554534B2 (en:Method) | 1980-01-30 |