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FR976859A - Special steel support - Google Patents

Special steel support

Info

Publication number
FR976859A
FR976859A FR976859DA FR976859A FR 976859 A FR976859 A FR 976859A FR 976859D A FR976859D A FR 976859DA FR 976859 A FR976859 A FR 976859A
Authority
FR
France
Prior art keywords
steel support
special steel
special
support
steel
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RECH S IND ET MINIERES SOC ET
Original Assignee
RECH S IND ET MINIERES SOC ET
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.)
Filing date
Publication date
Application filed by RECH S IND ET MINIERES SOC ET filed Critical RECH S IND ET MINIERES SOC ET
Application granted granted Critical
Publication of FR976859A publication Critical patent/FR976859A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/005—Props; Chocks, e.g. made of flexible containers filled with backfilling material characterised by the material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR976859D 1948-10-22 1948-10-22 Special steel support Expired FR976859A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR976859T 1948-10-22

Publications (1)

Publication Number Publication Date
FR976859A true FR976859A (en) 1951-03-23

Family

ID=9519174

Family Applications (1)

Application Number Title Priority Date Filing Date
FR976859D Expired FR976859A (en) 1948-10-22 1948-10-22 Special steel support

Country Status (1)

Country Link
FR (1) FR976859A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2385974A1 (en) * 1977-03-29 1978-10-27 Kloeckner Werke Ag STEEL ALLOY IN PARTICULAR FOR GALLERY SUPPORT PROFILES IN MINING EXPLOITATION

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2385974A1 (en) * 1977-03-29 1978-10-27 Kloeckner Werke Ag STEEL ALLOY IN PARTICULAR FOR GALLERY SUPPORT PROFILES IN MINING EXPLOITATION

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