JPS4898619A - - Google Patents
Info
- Publication number
- JPS4898619A JPS4898619A JP2980972A JP2980972A JPS4898619A JP S4898619 A JPS4898619 A JP S4898619A JP 2980972 A JP2980972 A JP 2980972A JP 2980972 A JP2980972 A JP 2980972A JP S4898619 A JPS4898619 A JP S4898619A
- 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.)
- Pending
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2980972A JPS4898619A (enExample) | 1972-03-27 | 1972-03-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2980972A JPS4898619A (enExample) | 1972-03-27 | 1972-03-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4898619A true JPS4898619A (enExample) | 1973-12-14 |
Family
ID=12286337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2980972A Pending JPS4898619A (enExample) | 1972-03-27 | 1972-03-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS4898619A (enExample) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3232360A (en) * | 1963-11-04 | 1966-02-01 | Mobile Drilling Co Inc | Bore positioning method and apparatus |
-
1972
- 1972-03-27 JP JP2980972A patent/JPS4898619A/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3232360A (en) * | 1963-11-04 | 1966-02-01 | Mobile Drilling Co Inc | Bore positioning method and apparatus |