BE482487A - - Google Patents

Info

Publication number
BE482487A
BE482487A BE482487DA BE482487A BE 482487 A BE482487 A BE 482487A BE 482487D A BE482487D A BE 482487DA BE 482487 A BE482487 A BE 482487A
Authority
BE
Belgium
Prior art keywords
prop
laying
male
timbering
journal
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE482487A publication Critical patent/BE482487A/fr

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/58Devices for setting props or chocks
    • E21D15/581Devices for setting props or chocks in which the props are pre- loaded

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Clamps And Clips (AREA)
BE482487D BE482487A (cs)

Publications (1)

Publication Number Publication Date
BE482487A true BE482487A (cs)

Family

ID=129165

Family Applications (1)

Application Number Title Priority Date Filing Date
BE482487D BE482487A (cs)

Country Status (1)

Country Link
BE (1) BE482487A (cs)

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