FR74872E - Nouvel étançon de mine - Google Patents

Nouvel étançon de mine

Info

Publication number
FR74872E
FR74872E FR785182A FR785182A FR74872E FR 74872 E FR74872 E FR 74872E FR 785182 A FR785182 A FR 785182A FR 785182 A FR785182 A FR 785182A FR 74872 E FR74872 E FR 74872E
Authority
FR
France
Prior art keywords
new mine
mine prop
prop
new
mine
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
FR785182A
Other languages
English (en)
Inventor
Jacques Perrin
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
Priority to FR785182A priority Critical patent/FR74872E/fr
Application granted granted Critical
Publication of FR74872E publication Critical patent/FR74872E/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)
FR785182A 1959-01-28 1959-01-28 Nouvel étançon de mine Expired FR74872E (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR785182A FR74872E (fr) 1959-01-28 1959-01-28 Nouvel étançon de mine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR785182A FR74872E (fr) 1959-01-28 1959-01-28 Nouvel étançon de mine

Publications (1)

Publication Number Publication Date
FR74872E true FR74872E (fr) 1961-03-03

Family

ID=8710593

Family Applications (1)

Application Number Title Priority Date Filing Date
FR785182A Expired FR74872E (fr) 1959-01-28 1959-01-28 Nouvel étançon de mine

Country Status (1)

Country Link
FR (1) FR74872E (fr)

Similar Documents

Publication Publication Date Title
FR1249097A (fr) Lance hydraulique
CH379101A (de) Dachfenster
BE597739A (fr) Viscosimètre
FR1182336A (fr) étançon de mine de logueur variable
FR1202536A (fr) étançon de mine
FR1224972A (fr) Planeuse-polisseuse de métallogénie
FR1248352A (fr) étai hydraulique de mine
CH372829A (it) Puntello Telescopico
FR74872E (fr) Nouvel étançon de mine
FR1212988A (fr) Nouvel étançon de mine
FR75374E (fr) étançon de mine
FR1281282A (fr) Distributeur de mines
FR1280150A (fr) Viscosimètre
BE603540A (fr) Etançon de mine
FR1175285A (fr) étançon de mine
FR1280693A (fr) étançon de mine hydropneumatique
FR1217368A (fr) Lucarne
FR1266885A (fr) étançon hydraulique
FR71197E (fr) étançon de mine
FR1169098A (fr) étançon de mine
FR1206464A (fr) étançon de mine
FR1214273A (fr) étançon de mine
FR1222567A (fr) étai de mine
FI34993A (fi) Kranaatinheitin
FR1252698A (fr) Manchon porte-détonateur