FR1131282A - was - Google Patents

was

Info

Publication number
FR1131282A
FR1131282A FR1131282DA FR1131282A FR 1131282 A FR1131282 A FR 1131282A FR 1131282D A FR1131282D A FR 1131282DA FR 1131282 A FR1131282 A FR 1131282A
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)
Inventor
Andre-Francois Gardin
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 FR1131282A publication Critical patent/FR1131282A/en
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)
FR1131282D 1955-09-16 1955-09-16 was Expired FR1131282A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1131282T 1955-09-16

Publications (1)

Publication Number Publication Date
FR1131282A true FR1131282A (en) 1957-02-19

Family

ID=9637809

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1131282D Expired FR1131282A (en) 1955-09-16 1955-09-16 was

Country Status (1)

Country Link
FR (1) FR1131282A (en)

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