PL218460A2 - - Google Patents
Info
- Publication number
- PL218460A2 PL218460A2 PL21846079A PL21846079A PL218460A2 PL 218460 A2 PL218460 A2 PL 218460A2 PL 21846079 A PL21846079 A PL 21846079A PL 21846079 A PL21846079 A PL 21846079A PL 218460 A2 PL218460 A2 PL 218460A2
- Authority
- PL
- Poland
Links
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL21846079A PL118794B2 (en) | 1979-09-21 | 1979-09-21 | Yeldable artificial roof multilevel collapse mining thick coal depositsrazrabotki z obrusheniem krovli tolstykh plastov uglja |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL21846079A PL118794B2 (en) | 1979-09-21 | 1979-09-21 | Yeldable artificial roof multilevel collapse mining thick coal depositsrazrabotki z obrusheniem krovli tolstykh plastov uglja |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL218460A2 true PL218460A2 (pl) | 1980-07-28 |
| PL118794B2 PL118794B2 (en) | 1981-10-31 |
Family
ID=19998499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL21846079A PL118794B2 (en) | 1979-09-21 | 1979-09-21 | Yeldable artificial roof multilevel collapse mining thick coal depositsrazrabotki z obrusheniem krovli tolstykh plastov uglja |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL118794B2 (pl) |
-
1979
- 1979-09-21 PL PL21846079A patent/PL118794B2/pl unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL118794B2 (en) | 1981-10-31 |