FR991993A - iron mine prop - Google Patents

iron mine prop

Info

Publication number
FR991993A
FR991993A FR991993DA FR991993A FR 991993 A FR991993 A FR 991993A FR 991993D A FR991993D A FR 991993DA FR 991993 A FR991993 A FR 991993A
Authority
FR
France
Prior art keywords
iron mine
mine prop
prop
iron
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
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 FR991993A publication Critical patent/FR991993A/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
    • E21D15/502—Prop bodies characterised by their shape, e.g. of specified cross-section
FR991993D 1948-12-11 1948-08-05 iron mine prop Expired FR991993A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE991993X 1948-12-11

Publications (1)

Publication Number Publication Date
FR991993A true FR991993A (en) 1951-10-12

Family

ID=6918901

Family Applications (1)

Application Number Title Priority Date Filing Date
FR991993D Expired FR991993A (en) 1948-12-11 1948-08-05 iron mine prop

Country Status (1)

Country Link
FR (1) FR991993A (en)

Similar Documents

Publication Publication Date Title
CH286541A (en) Anti-tank mine.
FR972665A (en) iron mine prop
FR991993A (en) iron mine prop
FR986331A (en) Drill support prop
FR1008513A (en) mine prop
FR1047558A (en) Advanced bodywork
FR977158A (en) Roof covering
FR1006435A (en) Drilling machine
FR1009846A (en) Pit prop
FR948939A (en) iron prop
FR990112A (en) iron mine prop
FR1007048A (en) Iron mine pole
FR1008735A (en) Roofing
FR970455A (en) Scarifier-seed drill
FR1002994A (en) iron mine prop
FR1009843A (en) Pit prop
FR1009772A (en) Pit prop
FR1009797A (en) Pit prop
FR1060751A (en) Pit prop
FR1060753A (en) Pit prop
FR1071602A (en) Pit prop
FR976149A (en) mine prop, iron, two-piece
AT172937B (en) Detonator
FR1009955A (en) Mine gallery support
FR1009849A (en) steel mine prop