FR1549102A - - Google Patents

Info

Publication number
FR1549102A
FR1549102A FR1549102DA FR1549102A FR 1549102 A FR1549102 A FR 1549102A FR 1549102D A FR1549102D A FR 1549102DA FR 1549102 A FR1549102 A FR 1549102A
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
Other languages
French (fr)
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 PL118273A external-priority patent/PL57410B1/pl
Application filed filed Critical
Application granted granted Critical
Publication of FR1549102A publication Critical patent/FR1549102A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/14—Telescopic props
    • E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Earth Drilling (AREA)
FR1549102D 1966-12-31 1967-12-28 Expired FR1549102A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL118273A PL57410B1 (de) 1966-12-31

Publications (1)

Publication Number Publication Date
FR1549102A true FR1549102A (de) 1968-12-06

Family

ID=19949589

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1549102D Expired FR1549102A (de) 1966-12-31 1967-12-28

Country Status (3)

Country Link
DE (1) DE1583101A1 (de)
FR (1) FR1549102A (de)
GB (1) GB1197841A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2297994A1 (fr) * 1975-01-15 1976-08-13 Banyaszati Kutato Intezet Etai hydraulique de mine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112253190B (zh) * 2020-10-22 2022-06-14 白莹 一种高效、高安全性能的煤矿采掘使用液压支柱

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2297994A1 (fr) * 1975-01-15 1976-08-13 Banyaszati Kutato Intezet Etai hydraulique de mine

Also Published As

Publication number Publication date
GB1197841A (en) 1970-07-08
DE1583101A1 (de) 1970-04-23

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Legal Events

Date Code Title Description
ST Notification of lapse