BE562307A - - Google Patents

Info

Publication number
BE562307A
BE562307A BE562307DA BE562307A BE 562307 A BE562307 A BE 562307A BE 562307D A BE562307D A BE 562307DA BE 562307 A BE562307 A BE 562307A
Authority
BE
Belgium
Prior art keywords
boxes
cap
profile
quadrangular
triangular
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE562307A publication Critical patent/BE562307A/fr

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00Caps for supporting mine roofs
    • E21D17/01Caps for supporting mine roofs characterised by the shape of the cap, e.g. of specified cross-section

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Road Signs Or Road Markings (AREA)
BE562307D BE562307A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
BE562307A true BE562307A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=183954

Family Applications (1)

Application Number Title Priority Date Filing Date
BE562307D BE562307A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
BE (1) BE562307A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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