GB2091010B - Improvements in security warning devices - Google Patents
Improvements in security warning devicesInfo
- Publication number
- GB2091010B GB2091010B GB8135869A GB8135869A GB2091010B GB 2091010 B GB2091010 B GB 2091010B GB 8135869 A GB8135869 A GB 8135869A GB 8135869 A GB8135869 A GB 8135869A GB 2091010 B GB2091010 B GB 2091010B
- Authority
- GB
- United Kingdom
- Prior art keywords
- warning devices
- security warning
- security
- devices
- warning
- 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.)
- Expired
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
- G08B25/016—Personal emergency signalling and security systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Alarm Systems (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8135869A GB2091010B (en) | 1980-11-28 | 1981-11-27 | Improvements in security warning devices |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8038298 | 1980-11-28 | ||
GB8135869A GB2091010B (en) | 1980-11-28 | 1981-11-27 | Improvements in security warning devices |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2091010A GB2091010A (en) | 1982-07-21 |
GB2091010B true GB2091010B (en) | 1984-11-07 |
Family
ID=26277674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8135869A Expired GB2091010B (en) | 1980-11-28 | 1981-11-27 | Improvements in security warning devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2091010B (en) |
-
1981
- 1981-11-27 GB GB8135869A patent/GB2091010B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2091010A (en) | 1982-07-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |