ZA867421B - Mining support pillars - Google Patents
Mining support pillarsInfo
- Publication number
- ZA867421B ZA867421B ZA867421A ZA867421A ZA867421B ZA 867421 B ZA867421 B ZA 867421B ZA 867421 A ZA867421 A ZA 867421A ZA 867421 A ZA867421 A ZA 867421A ZA 867421 B ZA867421 B ZA 867421B
- Authority
- ZA
- South Africa
- Prior art keywords
- support pillars
- mining support
- mining
- pillars
- support
- Prior art date
Links
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA867421A ZA867421B (en) | 1985-09-09 | 1986-09-29 | Mining support pillars |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA856892 | 1985-09-09 | ||
ZA867421A ZA867421B (en) | 1985-09-09 | 1986-09-29 | Mining support pillars |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA867421B true ZA867421B (en) | 1987-05-27 |
Family
ID=27136499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA867421A ZA867421B (en) | 1985-09-09 | 1986-09-29 | Mining support pillars |
Country Status (1)
Country | Link |
---|---|
ZA (1) | ZA867421B (en) |
-
1986
- 1986-09-29 ZA ZA867421A patent/ZA867421B/en unknown
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