BE676178A - - Google Patents
Info
- Publication number
- BE676178A BE676178A BE676178DA BE676178A BE 676178 A BE676178 A BE 676178A BE 676178D A BE676178D A BE 676178DA BE 676178 A BE676178 A BE 676178A
- Authority
- BE
- Belgium
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG0042776 | 1965-02-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE676178A true BE676178A (zh) | 1966-08-08 |
Family
ID=7127011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE676178D BE676178A (zh) | 1965-02-08 | 1966-02-08 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE676178A (zh) |
| GB (1) | GB1125174A (zh) |
| NL (1) | NL6601388A (zh) |
-
1966
- 1966-01-27 GB GB367966A patent/GB1125174A/en not_active Expired
- 1966-02-03 NL NL6601388A patent/NL6601388A/xx unknown
- 1966-02-08 BE BE676178D patent/BE676178A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6601388A (zh) | 1966-08-09 |
| GB1125174A (en) | 1968-08-28 |