DE120421C - - Google Patents

Info

Publication number
DE120421C
DE120421C DENDAT120421D DE120421DA DE120421C DE 120421 C DE120421 C DE 120421C DE NDAT120421 D DENDAT120421 D DE NDAT120421D DE 120421D A DE120421D A DE 120421DA DE 120421 C DE120421 C DE 120421C
Authority
DE
Germany
Prior art keywords
wall
floors
hinged
closure
pulling
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.)
Active
Application number
DENDAT120421D
Other languages
German (de)
English (en)
Publication of DE120421C publication Critical patent/DE120421C/de
Active 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
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/10—Air doors

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)
  • Tents Or Canopies (AREA)
DENDAT120421D Active DE120421C (https=)

Publications (1)

Publication Number Publication Date
DE120421C true DE120421C (https=)

Family

ID=389485

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT120421D Active DE120421C (https=)

Country Status (1)

Country Link
DE (1) DE120421C (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1267642B (de) * 1967-02-25 1968-05-09 Eschweiler Bergwerksverein Absperrvorrichtung fuer Wetterschleusen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1267642B (de) * 1967-02-25 1968-05-09 Eschweiler Bergwerksverein Absperrvorrichtung fuer Wetterschleusen

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