FR1123196A - metal mine prop - Google Patents

metal mine prop

Info

Publication number
FR1123196A
FR1123196A FR1123196DA FR1123196A FR 1123196 A FR1123196 A FR 1123196A FR 1123196D A FR1123196D A FR 1123196DA FR 1123196 A FR1123196 A FR 1123196A
Authority
FR
France
Prior art keywords
metal mine
mine prop
prop
metal
mine
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
Hans Gerlach
Karl Gerlach
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 FR1123196A publication Critical patent/FR1123196A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50—Component parts or details of props
    • E21D15/52—Extensible units located above or below standard props
FR1123196D 1954-06-28 1955-05-02 metal mine prop Expired FR1123196A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1123196X 1954-06-28

Publications (1)

Publication Number Publication Date
FR1123196A true FR1123196A (en) 1956-09-18

Family

ID=7724854

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1123196D Expired FR1123196A (en) 1954-06-28 1955-05-02 metal mine prop

Country Status (1)

Country Link
FR (1) FR1123196A (en)

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