DK251377A - - Google Patents
Info
- Publication number
- DK251377A DK251377A DK251377A DK251377A DK251377A DK 251377 A DK251377 A DK 251377A DK 251377 A DK251377 A DK 251377A DK 251377 A DK251377 A DK 251377A DK 251377 A DK251377 A DK 251377A
- Authority
- DK
- Denmark
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/018—Sensor coding by detecting magnitude of an electrical parameter, e.g. resistance
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Locating Faults (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2010477A GB1537642A (en) | 1977-05-13 | 1977-05-13 | Monitoring arrangement |
GB2010477 | 1977-05-13 |
Publications (3)
Publication Number | Publication Date |
---|---|
DK251377A true DK251377A (hu) | 1978-11-14 |
DK141183B DK141183B (da) | 1980-01-28 |
DK141183C DK141183C (hu) | 1980-07-07 |
Family
ID=10140451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK251377A DK141183B (da) | 1977-05-13 | 1977-06-07 | Overvågningsanlæg. |
Country Status (3)
Country | Link |
---|---|
DK (1) | DK141183B (hu) |
FI (1) | FI771836A (hu) |
GB (1) | GB1537642A (hu) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2090682B (en) * | 1981-01-06 | 1985-09-04 | Racal Mesl Security Ltd | Electrical circuits for security system |
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1977
- 1977-05-13 GB GB2010477A patent/GB1537642A/en not_active Expired
- 1977-06-07 DK DK251377A patent/DK141183B/da unknown
- 1977-06-10 FI FI771836A patent/FI771836A/fi not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DK141183C (hu) | 1980-07-07 |
GB1537642A (en) | 1979-01-04 |
FI771836A (fi) | 1978-11-14 |
DK141183B (da) | 1980-01-28 |