ZW4591A1 - Mine shaft sinking - Google Patents
Mine shaft sinkingInfo
- Publication number
- ZW4591A1 ZW4591A1 ZW45/91A ZW4591A ZW4591A1 ZW 4591 A1 ZW4591 A1 ZW 4591A1 ZW 45/91 A ZW45/91 A ZW 45/91A ZW 4591 A ZW4591 A ZW 4591A ZW 4591 A1 ZW4591 A1 ZW 4591A1
- Authority
- ZW
- Zimbabwe
- Prior art keywords
- mine shaft
- shaft sinking
- sinking
- mine
- shaft
- Prior art date
Links
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA902920 | 1990-04-18 | ||
GB909008669A GB9008669D0 (en) | 1990-04-18 | 1990-04-18 | The sinking of mine shafts |
Publications (1)
Publication Number | Publication Date |
---|---|
ZW4591A1 true ZW4591A1 (en) | 1992-04-22 |
Family
ID=26296951
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZW45/91A ZW4591A1 (en) | 1990-04-18 | 1991-04-17 | Mine shaft sinking |
Country Status (4)
Country | Link |
---|---|
AU (1) | AU650010B2 (en) |
BR (1) | BR9101574A (en) |
CA (1) | CA2040716C (en) |
ZW (1) | ZW4591A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112627826B (en) * | 2020-12-03 | 2022-05-03 | 招金矿业股份有限公司夏甸金矿 | Safe and efficient shaft tunneling method |
CN117386374B (en) * | 2023-12-13 | 2024-03-08 | 中国建筑第五工程局有限公司 | Shaft tunneling device with supporting structure |
-
1991
- 1991-04-17 ZW ZW45/91A patent/ZW4591A1/en unknown
- 1991-04-17 CA CA002040716A patent/CA2040716C/en not_active Expired - Lifetime
- 1991-04-18 BR BR919101574A patent/BR9101574A/en not_active IP Right Cessation
- 1991-04-18 AU AU75253/91A patent/AU650010B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA2040716C (en) | 2003-10-21 |
BR9101574A (en) | 1991-12-10 |
CA2040716A1 (en) | 1991-10-19 |
AU7525391A (en) | 1991-10-24 |
AU650010B2 (en) | 1994-06-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0458547A3 (en) | Shaft seals | |
GB8824111D0 (en) | Shaft excavation system | |
GB2227081B (en) | Mine | |
GB2245689B (en) | A land mine | |
GB2247067B (en) | A mine | |
GB2259971B (en) | Mine | |
ZW4591A1 (en) | Mine shaft sinking | |
GB2250573B (en) | A mine | |
GB2260350B (en) | Mine shaft sinking | |
ZA912873B (en) | Mine shaft sinking | |
ZA911968B (en) | Improved rock bolt | |
IL99335A0 (en) | Droppable mine | |
PL295931A1 (en) | Gallery or tunnel driving machine | |
GB2272046B (en) | Mine | |
GB9026399D0 (en) | Improvements relating to mining | |
ZA929357B (en) | Mine shaft assembly | |
EP0489416A3 (en) | Land mine | |
GB8901547D0 (en) | Mine roofbolts | |
GB8829327D0 (en) | Mining machinery | |
GB9003767D0 (en) | Underground tunnels | |
GB2249162B (en) | A mine | |
HUT60032A (en) | Mining gyrocompass | |
ZA918778B (en) | Rock bolting | |
PL288471A1 (en) | Mining machine | |
PL285393A1 (en) | Mining machine |