BE649543A - - Google Patents
Info
- Publication number
- BE649543A BE649543A BE649543DA BE649543A BE 649543 A BE649543 A BE 649543A BE 649543D A BE649543D A BE 649543DA BE 649543 A BE649543 A BE 649543A
- 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
-
- 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
- E21D23/0047—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor without essential shifting devices
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)
- Revetment (AREA)
- Tents Or Canopies (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL294372 | 1963-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE649543A true BE649543A (pl) | 1964-12-21 |
Family
ID=19754803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE649543D BE649543A (pl) | 1963-06-20 | 1964-06-19 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE649543A (pl) |
| DE (1) | DE1903014U (pl) |
| GB (1) | GB1058019A (pl) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1242540B (de) * | 1965-07-30 | 1967-06-22 | Gewerk Eisenhuette Westfalia | Schreitender Ausbau fuer den Untertagebetrieb |
-
1964
- 1964-06-18 GB GB2532164A patent/GB1058019A/en not_active Expired
- 1964-06-19 DE DE1964ST017416 patent/DE1903014U/de not_active Expired
- 1964-06-19 BE BE649543D patent/BE649543A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1903014U (de) | 1964-10-29 |
| GB1058019A (en) | 1967-02-08 |