FR647881A - Size backfilling process - Google Patents

Size backfilling process

Info

Publication number
FR647881A
FR647881A FR647881DA FR647881A FR 647881 A FR647881 A FR 647881A FR 647881D A FR647881D A FR 647881DA FR 647881 A FR647881 A FR 647881A
Authority
FR
France
Prior art keywords
size
backfilling process
backfilling
size backfilling
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)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mannesmann Demag AG
Original Assignee
Demag AG
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 by Demag AG filed Critical Demag AG
Application granted granted Critical
Publication of FR647881A publication Critical patent/FR647881A/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
    • E21F15/00—Methods or devices for placing filling-up materials in underground workings
    • E21F15/06—Filling-up mechanically
FR647881D 1927-01-15 1928-01-14 Size backfilling process Expired FR647881A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE647881X 1927-01-15

Publications (1)

Publication Number Publication Date
FR647881A true FR647881A (en) 1928-12-03

Family

ID=6581051

Family Applications (1)

Application Number Title Priority Date Filing Date
FR647881D Expired FR647881A (en) 1927-01-15 1928-01-14 Size backfilling process

Country Status (1)

Country Link
FR (1) FR647881A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3196563A (en) * 1962-05-08 1965-07-27 Eimco Corp Mining apparatus and method of operating the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3196563A (en) * 1962-05-08 1965-07-27 Eimco Corp Mining apparatus and method of operating the same

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