FR909249A - Support method and device - Google Patents

Support method and device

Info

Publication number
FR909249A
FR909249A FR909249DA FR909249A FR 909249 A FR909249 A FR 909249A FR 909249D A FR909249D A FR 909249DA FR 909249 A FR909249 A FR 909249A
Authority
FR
France
Prior art keywords
support method
support
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)
Inventor
Jean Comte
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 filed Critical
Application granted granted Critical
Publication of FR909249A publication Critical patent/FR909249A/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
    • E21D15/60—Devices for withdrawing props or chocks

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)
FR909249D 1944-10-04 1944-10-04 Support method and device Expired FR909249A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR909249T 1944-10-04

Publications (1)

Publication Number Publication Date
FR909249A true FR909249A (en) 1946-05-02

Family

ID=9407803

Family Applications (1)

Application Number Title Priority Date Filing Date
FR909249D Expired FR909249A (en) 1944-10-04 1944-10-04 Support method and device

Country Status (1)

Country Link
FR (1) FR909249A (en)

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