FR532979A - Appareil pour nettoyage de galeries - Google Patents

Appareil pour nettoyage de galeries

Info

Publication number
FR532979A
FR532979A FR532979DA FR532979A FR 532979 A FR532979 A FR 532979A FR 532979D A FR532979D A FR 532979DA FR 532979 A FR532979 A FR 532979A
Authority
FR
France
Prior art keywords
cleaning device
tunnel cleaning
tunnel
cleaning
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
Adrien Baudin
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 FR532979A publication Critical patent/FR532979A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR532979D 1921-01-07 1921-01-07 Appareil pour nettoyage de galeries Expired FR532979A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR532979T 1921-01-07

Publications (1)

Publication Number Publication Date
FR532979A true FR532979A (fr) 1922-02-16

Family

ID=8924764

Family Applications (1)

Application Number Title Priority Date Filing Date
FR532979D Expired FR532979A (fr) 1921-01-07 1921-01-07 Appareil pour nettoyage de galeries

Country Status (1)

Country Link
FR (1) FR532979A (fr)

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