NL85679C - - Google Patents
Info
- Publication number
- NL85679C NL85679C NL85679DA NL85679C NL 85679 C NL85679 C NL 85679C NL 85679D A NL85679D A NL 85679DA NL 85679 C NL85679 C NL 85679C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/005—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for remote controlled apparatus; for lines connecting such apparatus
-
- 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)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES31166A DE941737C (en) | 1952-11-23 | 1952-11-23 | Electrical wiring system, especially for lighting circuits in underground operations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL85679C true NL85679C (en) |
Family
ID=7480412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL85679D NL85679C (en) | 1952-11-23 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE524409A (en) |
| DE (1) | DE941737C (en) |
| NL (1) | NL85679C (en) |
-
0
- NL NL85679D patent/NL85679C/xx active
- BE BE524409D patent/BE524409A/xx unknown
-
1952
- 1952-11-23 DE DES31166A patent/DE941737C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE524409A (en) | |
| DE941737C (en) | 1956-04-19 |