FR874528A - iron prop for mines - Google Patents

iron prop for mines

Info

Publication number
FR874528A
FR874528A FR874528DA FR874528A FR 874528 A FR874528 A FR 874528A FR 874528D A FR874528D A FR 874528DA FR 874528 A FR874528 A FR 874528A
Authority
FR
France
Prior art keywords
mines
iron prop
prop
iron
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
Abnold Koepe
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 FR874528A publication Critical patent/FR874528A/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
FR874528D 1939-07-18 1941-08-07 iron prop for mines Expired FR874528A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE874528X 1939-07-18

Publications (1)

Publication Number Publication Date
FR874528A true FR874528A (en) 1942-08-10

Family

ID=6816913

Family Applications (1)

Application Number Title Priority Date Filing Date
FR874528D Expired FR874528A (en) 1939-07-18 1941-08-07 iron prop for mines

Country Status (1)

Country Link
FR (1) FR874528A (en)

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