BE432747A - - Google Patents

Info

Publication number
BE432747A
BE432747A BE432747DA BE432747A BE 432747 A BE432747 A BE 432747A BE 432747D A BE432747D A BE 432747DA BE 432747 A BE432747 A BE 432747A
Authority
BE
Belgium
Prior art keywords
emi
corner
pound
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE432747A publication Critical patent/BE432747A/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
    • E21D15/14—Telescopic props
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations

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)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
BE432747D BE432747A (cg-RX-API-DMAC7.html)

Publications (1)

Publication Number Publication Date
BE432747A true BE432747A (cg-RX-API-DMAC7.html)

Family

ID=92253

Family Applications (1)

Application Number Title Priority Date Filing Date
BE432747D BE432747A (cg-RX-API-DMAC7.html)

Country Status (1)

Country Link
BE (1) BE432747A (cg-RX-API-DMAC7.html)

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