FR1075691A - Nouvel étançon - Google Patents

Nouvel étançon

Info

Publication number
FR1075691A
FR1075691A FR1075691DA FR1075691A FR 1075691 A FR1075691 A FR 1075691A FR 1075691D A FR1075691D A FR 1075691DA FR 1075691 A FR1075691 A FR 1075691A
Authority
FR
France
Prior art keywords
new prop
prop
new
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
English (en)
Inventor
Elie Cohen
Jacoues Lemaire
Michel Lemaire
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 FR1075691A publication Critical patent/FR1075691A/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)
FR1075691D 1953-03-16 1953-03-16 Nouvel étançon Expired FR1075691A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1075691T 1953-03-16

Publications (1)

Publication Number Publication Date
FR1075691A true FR1075691A (fr) 1954-10-19

Family

ID=9607303

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1075691D Expired FR1075691A (fr) 1953-03-16 1953-03-16 Nouvel étançon

Country Status (1)

Country Link
FR (1) FR1075691A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1132878B (de) * 1960-05-21 1962-07-12 Hermann Schwarz Kommanditgesel Hydraulisches Stuetzelement fuer den Grubenausbau
US3240226A (en) * 1962-05-31 1966-03-15 Mid Atlantic Plastics Corp Self-tapping service valve fitting

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1132878B (de) * 1960-05-21 1962-07-12 Hermann Schwarz Kommanditgesel Hydraulisches Stuetzelement fuer den Grubenausbau
US3240226A (en) * 1962-05-31 1966-03-15 Mid Atlantic Plastics Corp Self-tapping service valve fitting

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