BE763292A - DRILLING TUNNELS. - Google Patents
DRILLING TUNNELS.Info
- Publication number
- BE763292A BE763292A BE763292A BE763292A BE763292A BE 763292 A BE763292 A BE 763292A BE 763292 A BE763292 A BE 763292A BE 763292 A BE763292 A BE 763292A BE 763292 A BE763292 A BE 763292A
- Authority
- BE
- Belgium
- Prior art keywords
- drilling tunnels
- tunnels
- drilling
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE763292A BE763292A (en) | 1971-02-22 | 1971-02-22 | DRILLING TUNNELS. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE763292A BE763292A (en) | 1971-02-22 | 1971-02-22 | DRILLING TUNNELS. |
Publications (1)
Publication Number | Publication Date |
---|---|
BE763292A true BE763292A (en) | 1971-07-16 |
Family
ID=3857755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE763292A BE763292A (en) | 1971-02-22 | 1971-02-22 | DRILLING TUNNELS. |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE763292A (en) |
-
1971
- 1971-02-22 BE BE763292A patent/BE763292A/en unknown
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