JPS4980819A - - Google Patents
Info
- Publication number
- JPS4980819A JPS4980819A JP12255872A JP12255872A JPS4980819A JP S4980819 A JPS4980819 A JP S4980819A JP 12255872 A JP12255872 A JP 12255872A JP 12255872 A JP12255872 A JP 12255872A JP S4980819 A JPS4980819 A JP S4980819A
- 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 |
|---|---|---|---|
| JP12255872A JPS4980819A (https=) | 1972-12-08 | 1972-12-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12255872A JPS4980819A (https=) | 1972-12-08 | 1972-12-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4980819A true JPS4980819A (https=) | 1974-08-05 |
Family
ID=14838850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12255872A Pending JPS4980819A (https=) | 1972-12-08 | 1972-12-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS4980819A (https=) |
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1972
- 1972-12-08 JP JP12255872A patent/JPS4980819A/ja active Pending