BE513045A - - Google Patents

Info

Publication number
BE513045A
BE513045A BE513045DA BE513045A BE 513045 A BE513045 A BE 513045A BE 513045D A BE513045D A BE 513045DA BE 513045 A BE513045 A BE 513045A
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 BE513045A publication Critical patent/BE513045A/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/02—Cantilever extension or similar protecting devices
    • E21D17/08—Cap joints for obtaining a coal-face free of pit-props
    • E21D17/086—Cap 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)
  • Golf Clubs (AREA)
  • Holders For Apparel And Elements Relating To Apparel (AREA)
BE513045D 1952-07-23 BE513045A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE742741X 1952-07-23

Publications (1)

Publication Number Publication Date
BE513045A true BE513045A (enrdf_load_html_response)

Family

ID=3879449

Family Applications (1)

Application Number Title Priority Date Filing Date
BE513045D BE513045A (enrdf_load_html_response) 1952-07-23

Country Status (4)

Country Link
BE (1) BE513045A (enrdf_load_html_response)
FR (1) FR1077441A (enrdf_load_html_response)
GB (1) GB742741A (enrdf_load_html_response)
LU (1) LU32191A1 (enrdf_load_html_response)

Also Published As

Publication number Publication date
FR1077441A (fr) 1954-11-08
LU32191A1 (enrdf_load_html_response)
GB742741A (en) 1956-01-04

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