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
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)
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 (da) | 1975-09-11 |
DE2425332C2 DE2425332C2 (de) | 1976-04-22 |
Family
ID=
Also Published As
Publication number | Publication date |
---|---|
DE2425332B1 (de) | 1975-09-11 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
E77 | Valid patent as to the heymanns-index 1977 | ||
8320 | Willingness to grant licences declared (paragraph 23) |