BE512605A - - Google Patents

Info

Publication number
BE512605A
BE512605A BE512605DA BE512605A BE 512605 A BE512605 A BE 512605A BE 512605D A BE512605D A BE 512605DA BE 512605 A BE512605 A BE 512605A
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 BE512605A publication Critical patent/BE512605A/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)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
BE512605D 1952-07-03 BE512605A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE735363X 1952-07-03

Publications (1)

Publication Number Publication Date
BE512605A true BE512605A (enrdf_load_html_response)

Family

ID=3879291

Family Applications (1)

Application Number Title Priority Date Filing Date
BE512605D BE512605A (enrdf_load_html_response) 1952-07-03

Country Status (4)

Country Link
BE (1) BE512605A (enrdf_load_html_response)
DE (1) DE1024466B (enrdf_load_html_response)
FR (1) FR1070980A (enrdf_load_html_response)
GB (1) GB735363A (enrdf_load_html_response)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE835586C (de) * 1949-11-25 1952-04-03 Hans Gerlach Grubenausbau, insbesondere fuer eine stempelfreie Abbaufront

Also Published As

Publication number Publication date
GB735363A (en) 1955-08-17
DE1024466B (de) 1958-02-20
FR1070980A (fr) 1954-08-20

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