LU32191A1 - - Google Patents

Info

Publication number
LU32191A1
LU32191A1 LU32191DA LU32191A1 LU 32191 A1 LU32191 A1 LU 32191A1 LU 32191D A LU32191D A LU 32191DA LU 32191 A1 LU32191 A1 LU 32191A1
Authority
LU
Luxembourg
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 LU32191A1 publication Critical patent/LU32191A1/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)
LU32191D 1952-07-23 LU32191A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
LU32191A1 true LU32191A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=3879449

Family Applications (1)

Application Number Title Priority Date Filing Date
LU32191D LU32191A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1952-07-23

Country Status (4)

Country Link
BE (1) BE513045A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1077441A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB742741A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
LU (1) LU32191A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
FR1077441A (fr) 1954-11-08
GB742741A (en) 1956-01-04
BE513045A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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