JPS5211921Y2 - - Google Patents
Info
- Publication number
- JPS5211921Y2 JPS5211921Y2 JP4776272U JP4776272U JPS5211921Y2 JP S5211921 Y2 JPS5211921 Y2 JP S5211921Y2 JP 4776272 U JP4776272 U JP 4776272U JP 4776272 U JP4776272 U JP 4776272U JP S5211921 Y2 JPS5211921 Y2 JP S5211921Y2
- 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
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4776272U JPS5211921Y2 (https=) | 1972-04-21 | 1972-04-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4776272U JPS5211921Y2 (https=) | 1972-04-21 | 1972-04-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS497101U JPS497101U (https=) | 1974-01-22 |
| JPS5211921Y2 true JPS5211921Y2 (https=) | 1977-03-16 |
Family
ID=27925315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4776272U Expired JPS5211921Y2 (https=) | 1972-04-21 | 1972-04-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5211921Y2 (https=) |
-
1972
- 1972-04-21 JP JP4776272U patent/JPS5211921Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS497101U (https=) | 1974-01-22 |