BE474607A - - Google Patents

Info

Publication number
BE474607A
BE474607A BE474607DA BE474607A BE 474607 A BE474607 A BE 474607A BE 474607D A BE474607D A BE 474607DA BE 474607 A BE474607 A BE 474607A
Authority
BE
Belgium
Prior art keywords
prop
lifting
rollers
roller
props
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE474607A publication Critical patent/BE474607A/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)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
BE474607D BE474607A (enrdf_load_html_response)

Publications (1)

Publication Number Publication Date
BE474607A true BE474607A (enrdf_load_html_response)

Family

ID=123567

Family Applications (1)

Application Number Title Priority Date Filing Date
BE474607D BE474607A (enrdf_load_html_response)

Country Status (1)

Country Link
BE (1) BE474607A (enrdf_load_html_response)

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