FR926951A - Drainage device for mining operations - Google Patents

Drainage device for mining operations

Info

Publication number
FR926951A
FR926951A FR926951DA FR926951A FR 926951 A FR926951 A FR 926951A FR 926951D A FR926951D A FR 926951DA FR 926951 A FR926951 A FR 926951A
Authority
FR
France
Prior art keywords
drainage device
mining operations
mining
operations
drainage
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
Anton Lobbert
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 FR926951A publication Critical patent/FR926951A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F16/00—Drainage
FR926951D 1946-05-15 1946-05-15 Drainage device for mining operations Expired FR926951A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR926951T 1946-05-15

Publications (1)

Publication Number Publication Date
FR926951A true FR926951A (en) 1947-10-16

Family

ID=9440849

Family Applications (1)

Application Number Title Priority Date Filing Date
FR926951D Expired FR926951A (en) 1946-05-15 1946-05-15 Drainage device for mining operations

Country Status (1)

Country Link
FR (1) FR926951A (en)

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