BE763292A - Percage de tunnels. - Google Patents

Percage de 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
Application number
BE763292A
Other languages
English (en)
Original Assignee
Branzikoff Vassil
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Branzikoff Vassil filed Critical Branzikoff Vassil
Priority to BE763292A priority Critical patent/BE763292A/fr
Publication of BE763292A publication Critical patent/BE763292A/fr

Links

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)
BE763292A 1971-02-22 1971-02-22 Percage de tunnels. BE763292A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE763292A BE763292A (fr) 1971-02-22 1971-02-22 Percage de tunnels.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE763292A BE763292A (fr) 1971-02-22 1971-02-22 Percage de tunnels.

Publications (1)

Publication Number Publication Date
BE763292A true BE763292A (fr) 1971-07-16

Family

ID=3857755

Family Applications (1)

Application Number Title Priority Date Filing Date
BE763292A BE763292A (fr) 1971-02-22 1971-02-22 Percage de tunnels.

Country Status (1)

Country Link
BE (1) BE763292A (fr)

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