JPS4922406B1 - - Google Patents
Info
- Publication number
- JPS4922406B1 JPS4922406B1 JP4256970A JP4256970A JPS4922406B1 JP S4922406 B1 JPS4922406 B1 JP S4922406B1 JP 4256970 A JP4256970 A JP 4256970A JP 4256970 A JP4256970 A JP 4256970A JP S4922406 B1 JPS4922406 B1 JP S4922406B1
- 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 |
|---|---|---|---|
| JP4256970A JPS4922406B1 (en:Method) | 1970-05-18 | 1970-05-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4256970A JPS4922406B1 (en:Method) | 1970-05-18 | 1970-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4922406B1 true JPS4922406B1 (en:Method) | 1974-06-08 |
Family
ID=12639677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4256970A Pending JPS4922406B1 (en:Method) | 1970-05-18 | 1970-05-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS4922406B1 (en:Method) |
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1970
- 1970-05-18 JP JP4256970A patent/JPS4922406B1/ja active Pending