FR2042958A5 - - Google Patents

Info

Publication number
FR2042958A5
FR2042958A5 FR7012307A FR7012307A FR2042958A5 FR 2042958 A5 FR2042958 A5 FR 2042958A5 FR 7012307 A FR7012307 A FR 7012307A FR 7012307 A FR7012307 A FR 7012307A FR 2042958 A5 FR2042958 A5 FR 2042958A5
Authority
FR
France
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
FR7012307A
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.)
Gewerkschaft Eisenhutte Westfalia GmbH
Original Assignee
Gewerkschaft Eisenhutte Westfalia GmbH
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
Priority claimed from DE19691918048 external-priority patent/DE1918048C3/de
Application filed by Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Application granted granted Critical
Publication of FR2042958A5 publication Critical patent/FR2042958A5/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/02—Cantilever extension or similar protecting devices
    • E21D17/0206—Hydraulically operated extension devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Holders For Apparel And Elements Relating To Apparel (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
FR7012307A 1969-04-09 1970-04-06 Expired FR2042958A5 (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691918048 DE1918048C3 (de) 1969-04-09 Vorpfändvorrichtung

Publications (1)

Publication Number Publication Date
FR2042958A5 true FR2042958A5 (enExample) 1971-02-12

Family

ID=5730704

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7012307A Expired FR2042958A5 (enExample) 1969-04-09 1970-04-06

Country Status (2)

Country Link
FR (1) FR2042958A5 (enExample)
GB (1) GB1295779A (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2197678B (en) * 1986-11-21 1990-04-11 Gullick Dobson Ltd Mine roof supports
CN102031985B (zh) * 2009-09-28 2012-09-05 三一重型装备有限公司 迈步自移式支架

Also Published As

Publication number Publication date
GB1295779A (enExample) 1972-11-08
DE1918048A1 (de) 1970-10-15
DE1918048B2 (de) 1977-05-26

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Legal Events

Date Code Title Description
ST Notification of lapse