BE452847A - - Google Patents
Info
- Publication number
- BE452847A BE452847A BE452847DA BE452847A BE 452847 A BE452847 A BE 452847A BE 452847D A BE452847D A BE 452847DA BE 452847 A BE452847 A BE 452847A
- Authority
- BE
- Belgium
- Prior art keywords
- support
- tenon
- prop
- beams
- head
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/01—Caps for supporting mine roofs characterised by the shape of the cap, e.g. of specified cross-section
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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE452847A true BE452847A (ja�@�@) |
Family
ID=107375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE452847D BE452847A (ja�@�@) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE452847A (ja�@�@) |
-
0
- BE BE452847D patent/BE452847A/fr unknown
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