DE2425332A1 - - Google Patents

Info

Publication number
DE2425332A1
DE2425332A1 DE19742425332 DE2425332A DE2425332A1 DE 2425332 A1 DE2425332 A1 DE 2425332A1 DE 19742425332 DE19742425332 DE 19742425332 DE 2425332 A DE2425332 A DE 2425332A DE 2425332 A1 DE2425332 A1 DE 2425332A1
Authority
DE
Germany
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.)
Granted
Application number
DE19742425332
Other languages
German (de)
Other versions
DE2425332C2 (de
DE2425332B1 (de
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 DE19742425332 priority Critical patent/DE2425332C2/de
Priority claimed from DE19742425332 external-priority patent/DE2425332C2/de
Publication of DE2425332B1 publication Critical patent/DE2425332B1/de
Publication of DE2425332A1 publication Critical patent/DE2425332A1/de
Application granted granted Critical
Publication of DE2425332C2 publication Critical patent/DE2425332C2/de
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
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/18—Special adaptations of signalling or alarm devices

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)
  • Emergency Alarm Devices (AREA)
DE19742425332 1974-05-25 Anordnung zur Absicherung von Gefahrenbereichen In Untertagebetrieben Expired DE2425332C2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19742425332 DE2425332C2 (de) 1974-05-25 Anordnung zur Absicherung von Gefahrenbereichen In Untertagebetrieben

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742425332 DE2425332C2 (de) 1974-05-25 Anordnung zur Absicherung von Gefahrenbereichen In Untertagebetrieben

Publications (3)

Publication Number Publication Date
DE2425332B1 DE2425332B1 (de) 1975-09-11
DE2425332A1 true DE2425332A1 (OSRAM) 1975-09-11
DE2425332C2 DE2425332C2 (de) 1976-04-22

Family

ID=

Also Published As

Publication number Publication date
DE2425332B1 (de) 1975-09-11

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977
8320 Willingness to grant licences declared (paragraph 23)