ZA91910B - Pit prop - Google Patents
Pit propInfo
- Publication number
- ZA91910B ZA91910B ZA91910A ZA91910A ZA91910B ZA 91910 B ZA91910 B ZA 91910B ZA 91910 A ZA91910 A ZA 91910A ZA 91910 A ZA91910 A ZA 91910A ZA 91910 B ZA91910 B ZA 91910B
- Authority
- ZA
- South Africa
- Prior art keywords
- pit prop
- prop
- pit
- Prior art date
Links
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA91910A ZA91910B (en) | 1990-02-12 | 1991-02-07 | Pit prop |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA901026 | 1990-02-12 | ||
ZA91910A ZA91910B (en) | 1990-02-12 | 1991-02-07 | Pit prop |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA91910B true ZA91910B (en) | 1991-11-27 |
Family
ID=27140888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA91910A ZA91910B (en) | 1990-02-12 | 1991-02-07 | Pit prop |
Country Status (1)
Country | Link |
---|---|
ZA (1) | ZA91910B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9611738B2 (en) | 2014-08-27 | 2017-04-04 | Burrell Mining Products, Inc. | Ventilated mine roof support |
US9903203B2 (en) | 2014-08-27 | 2018-02-27 | Burrell Mining Products, Inc. | Ventilated mine roof support |
-
1991
- 1991-02-07 ZA ZA91910A patent/ZA91910B/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9611738B2 (en) | 2014-08-27 | 2017-04-04 | Burrell Mining Products, Inc. | Ventilated mine roof support |
US9903203B2 (en) | 2014-08-27 | 2018-02-27 | Burrell Mining Products, Inc. | Ventilated mine roof support |
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