FR1086047A - étançons - Google Patents

étançons

Info

Publication number
FR1086047A
FR1086047A FR1086047DA FR1086047A FR 1086047 A FR1086047 A FR 1086047A FR 1086047D A FR1086047D A FR 1086047DA FR 1086047 A FR1086047 A FR 1086047A
Authority
FR
France
Prior art keywords
prop
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)
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.)
EQUIP MINIER SOC D
Original Assignee
EQUIP MINIER SOC D
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 EQUIP MINIER SOC D filed Critical EQUIP MINIER SOC D
Application granted granted Critical
Publication of FR1086047A publication Critical patent/FR1086047A/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
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/38—Telescopic props with parts held relatively to each other by friction or gripping with longitudinally-divided upper or lower prop parts, e.g. interfitting laminations

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)
FR1086047D 1953-07-02 1953-07-02 étançons Expired FR1086047A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1086047T 1953-07-02

Publications (1)

Publication Number Publication Date
FR1086047A true FR1086047A (fr) 1955-02-09

Family

ID=9612580

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1086047D Expired FR1086047A (fr) 1953-07-02 1953-07-02 étançons

Country Status (1)

Country Link
FR (1) FR1086047A (fr)

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