BE425915A - - Google Patents

Info

Publication number
BE425915A
BE425915A BE425915DA BE425915A BE 425915 A BE425915 A BE 425915A BE 425915D A BE425915D A BE 425915DA BE 425915 A BE425915 A BE 425915A
Authority
BE
Belgium
Prior art keywords
rigid
prop
hollow element
tube
hollow
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE425915A publication Critical patent/BE425915A/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/02—Non-telescopic props

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)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)
BE425915D BE425915A (cg-RX-API-DMAC7.html)

Publications (1)

Publication Number Publication Date
BE425915A true BE425915A (cg-RX-API-DMAC7.html)

Family

ID=86818

Family Applications (1)

Application Number Title Priority Date Filing Date
BE425915D BE425915A (cg-RX-API-DMAC7.html)

Country Status (1)

Country Link
BE (1) BE425915A (cg-RX-API-DMAC7.html)

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