BE525753A - - Google Patents

Info

Publication number
BE525753A
BE525753A BE525753DA BE525753A BE 525753 A BE525753 A BE 525753A BE 525753D A BE525753D A BE 525753DA BE 525753 A BE525753 A BE 525753A
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 BE525753A publication Critical patent/BE525753A/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)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
BE525753D 1953-01-17 BE525753A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE750706X 1953-01-17

Publications (1)

Publication Number Publication Date
BE525753A true BE525753A (enrdf_load_html_response)

Family

ID=6650691

Family Applications (1)

Application Number Title Priority Date Filing Date
BE525753D BE525753A (enrdf_load_html_response) 1953-01-17

Country Status (4)

Country Link
BE (1) BE525753A (enrdf_load_html_response)
FR (1) FR1091452A (enrdf_load_html_response)
GB (1) GB750706A (enrdf_load_html_response)
NL (1) NL87036C (enrdf_load_html_response)

Also Published As

Publication number Publication date
NL87036C (enrdf_load_html_response)
GB750706A (en) 1956-06-20
FR1091452A (fr) 1955-04-12

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