BE501454A - - Google Patents

Info

Publication number
BE501454A
BE501454A BE501454DA BE501454A BE 501454 A BE501454 A BE 501454A BE 501454D A BE501454D A BE 501454DA BE 501454 A BE501454 A BE 501454A
Authority
BE
Belgium
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of BE501454A publication Critical patent/BE501454A/xx

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00Caps for supporting mine roofs
    • E21D17/02Cantilever extension or similar protecting devices
    • E21D17/08Cap joints for obtaining a coal-face free of pit-props
    • E21D17/086Cap joints for obtaining a coal-face free of pit-props or articulated type

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)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Emergency Lowering Means (AREA)
BE501454D 1951-01-06 BE501454A (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM8118A DE853737C (de) 1951-01-06 1951-01-06 Vorrichtung zum voruebergehend freitragenden Anschluss einer vor-zupfaendenden Kappean die vom Stempel unterstuetzte Kappe

Publications (1)

Publication Number Publication Date
BE501454A true BE501454A (en:Method)

Family

ID=9743592

Family Applications (1)

Application Number Title Priority Date Filing Date
BE501454D BE501454A (en:Method) 1951-01-06

Country Status (4)

Country Link
BE (1) BE501454A (en:Method)
DE (1) DE853737C (en:Method)
FR (1) FR1031195A (en:Method)
GB (1) GB686640A (en:Method)

Also Published As

Publication number Publication date
FR1031195A (fr) 1953-06-22
DE853737C (de) 1952-10-27
GB686640A (en) 1953-01-28

Similar Documents

Publication Publication Date Title
AT190786B (en:Method)
BE501454A (en:Method)
BE500989A (en:Method)
BE501372A (en:Method)
BE501564A (en:Method)
BE502599A (en:Method)
BE503006A (en:Method)
BE504148A (en:Method)
BE504419A (en:Method)
BE505354A (en:Method)
BE505906A (en:Method)
BE506080A (en:Method)
BE506535A (en:Method)
BE506907A (en:Method)
BE507378A (en:Method)
BE507850A (en:Method)
BE507932A (en:Method)
BE508020A (en:Method)
BE508321A (en:Method)
BE508628A (en:Method)
BE508736A (en:Method)
BE508754A (en:Method)
BE508787A (en:Method)
BE508812A (en:Method)
BE509366A (en:Method)