FR979823A - Base for mine poles - Google Patents

Base for mine poles

Info

Publication number
FR979823A
FR979823A FR979823DA FR979823A FR 979823 A FR979823 A FR 979823A FR 979823D A FR979823D A FR 979823DA FR 979823 A FR979823 A FR 979823A
Authority
FR
France
Prior art keywords
mine
poles
base
mine poles
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.)
DISTRIB ET VENTE SA
Original Assignee
DISTRIB ET VENTE SA
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 DISTRIB ET VENTE SA filed Critical DISTRIB ET VENTE SA
Application granted granted Critical
Publication of FR979823A publication Critical patent/FR979823A/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
    • E21D15/02—Non-telescopic props
    • E21D15/06—Non-telescopic props with parts joined by a lock, with or without slight axial adjustability
    • E21D15/12—Non-telescopic props with parts joined by a lock, with or without slight axial adjustability with locking devices located near head or foot

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)
FR979823D 1948-02-09 1949-01-31 Base for mine poles Expired FR979823A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH979823X 1948-02-09

Publications (1)

Publication Number Publication Date
FR979823A true FR979823A (en) 1951-05-04

Family

ID=4551296

Family Applications (1)

Application Number Title Priority Date Filing Date
FR979823D Expired FR979823A (en) 1948-02-09 1949-01-31 Base for mine poles

Country Status (1)

Country Link
FR (1) FR979823A (en)

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